EP3670811B1 - Glasentfernungssensor zur erfassung der entfernung einer scheibe von einem fenster oder einer tür - Google Patents

Glasentfernungssensor zur erfassung der entfernung einer scheibe von einem fenster oder einer tür Download PDF

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Publication number
EP3670811B1
EP3670811B1 EP19218762.3A EP19218762A EP3670811B1 EP 3670811 B1 EP3670811 B1 EP 3670811B1 EP 19218762 A EP19218762 A EP 19218762A EP 3670811 B1 EP3670811 B1 EP 3670811B1
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EP
European Patent Office
Prior art keywords
window
sensor assembly
sensor
conductive
glass
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EP19218762.3A
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English (en)
French (fr)
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EP3670811A1 (de
Inventor
Lars Jonsson
Mats Pettersson
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Gilje Tre As
Sensative AB
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Gilje Tre As
Sensative AB
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Publication of EP3670811A1 publication Critical patent/EP3670811A1/de
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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
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary

Definitions

  • the present disclosure relates to a glass removal sensor for detecting removal of a glass pane, such as a framed glass pane, in a window or a door.
  • the sensor may be configured for sensing removal of the glass pane without breaking the glass.
  • a burglar breaking in to a building may gain access to the building in various ways.
  • the windows of a building are naturally a vulnerable area and needs to be protected by an alarm system such that a beak-in is detected.
  • Alarm systems today may detect if a window is open or closed and give off an alarm if the window is opened when it should be closed. This may be achieved by a sensor at the window.
  • An alarm system may further be configured for detecting breaking or shattering of a window in the building. Such detectors work either by sensing the shock or vibrations from breaking glass or by detecting specific frequencies characterizing the sound of breaking glass using a microphone.
  • While such sensors do provide good capabilities of detecting a break-in, they do not cover all possible methods used by burglars.
  • One method not covered by such systems is the removal of the entire window glass, either the glass pane or the glass pane with its frame, without breaking it.
  • the glass pane optionally the glass pane and its frame, may be pry opened and removed from the sash of the window. Since the window remains closed, the alarm is not set off.
  • Conventional glass break detectors and magnetic sensor for detecting if a window is opened will not detect this type of break-in.
  • GB 2 186 408 discloses a security system for use with double glazed units.
  • the system consists of at least one switch disposed between the glazing bead on the surface of the frame and the edge of a double glazed unit.
  • US 2018/268671 discloses and elongated sensor assembly for a wireless alarm system for detecting the opening and closing of a door or window.
  • the sensor assembly comprises a capacitive area.
  • GB 2 201 277 discloses a glazing unit alarm system having at least one glazing panel and provided with spaced apart first and second faces and electric alarm means.
  • the electric alarm means comprises a light transmitting electrically conductive coating on the first face and conducting means on the second face.
  • This is provided by the present disclosure relating to a window or door comprising a glass removal sensor for detecting removal of a glass unit in the window or a door.
  • the sensor assembly preferably a sensor assembly having a thin shape, with an additional capacitive sensor arrangement, can be used to detect the removal of the glass unit from the sash.
  • the sensor assembly may thereby be configured to detect a change of state of the capacitive sensor in response to an externally generated change in capacitance between the first conductive area and a reference point of the sensor assembly.
  • the capacitive sensor can be implemented in different embodiments.
  • the sensor may be configured to sense an externally generated change in capacitance value between the first conductive area and a second conductive area. This may be achieved in several configurations, as will be demonstrated in the present disclosure.
  • the definitions of the terms 'glass unit' i.e.
  • 'sash' i.e. the glass unit and an additional frame, usually the frame of the movable part of a window, or equivalently the outer portion of a door
  • 'jamb' head jamb/side jamb/
  • 'sill' may be useful for the interpretation of the claimed physical arrangements and functioning of the present glass removal sensor and window.
  • the sensor assembly may be a thin, such as thinner than 5 mm, and elongated, assembly.
  • the sensor assembly can be mounted for example on or in the sash of the window or on a door holding a glass pane, i.e. for example on the outside of the movable part of a window, or in the movable part of the door assembly.
  • the sensor assembly can be mounted on the sash using an adhesive film.
  • the first conductive area and/or a second conductive area of the sensor assembly can then be connected, directly or indirectly, to the glass unit, which is a part of the window or door that sometimes can be replaced and sometimes also removed by introducers to break into a building.
  • One advantage of the presently disclosed glass removal sensor is that the glass unit still can be replaced relatively easily. Only the wire or conductive element that is attached to the glass unit needs to be re-attached.
  • the first conductive element is arranged between the sensor assembly and the glass unit.
  • the first conductive element comprises a first wire having first and second wire-end conductive areas.
  • the first wire-end conductive area is arranged adjacent to the corresponding first conductive area of the sensor assembly.
  • the second wire-end conductive area is located in the other end of the conductive element towards the glass unit, as shown in fig. 2 , adjacent to a second conductive element in the form of for example a piece of foil.
  • the second wire comprises a third wire-end conductive area towards a corresponding second conductive area of the sensor assembly, which is connected to a ground plane or other reference level.
  • the wire further comprises a fourth wire-end conductive area in the other end towards the glass unit adjacent to a second conductive element in the form of for example a piece of foil.
  • Fig. 2 shows such an embodiment.
  • the wires may extend for example through a hole in the sash.
  • a glass unit conductive element is arranged to make a resistive or capacitive short-circuit between the two parallel wires. Removing the entire glass unit from the correctly mounted position will break the short-circuit, thereby also changing the capacitive value at the capacitive sensor.
  • the first conductive element is arranged between the sensor assembly (which is mounted on the sash) and the glass unit.
  • the conductive element makes a resistive or capacitive short circuit between the capacitive sensor and the ground plane or the second conductive area. If the conductive element is removed or broken the short circuit between the capacitive sensor and ground is removed, which causes a change in capacitance measured by the capacitive sensor. If the conductive element is mounted on the glass unit, for example by means of a mechanical wire, in such a way that it is pulled away from the capacitive sensor or such that the connectivity is broken when the glass unit is removed from its correct position, it will break the short-circuit, thereby also changing the capacitive value at the capacitive sensor. This embodiment is shown in fig. 4 .
  • the window/door may comprise any embodiment of the presently disclosed glass removal sensor.
  • the window/door may thereby be sold and delivered as a complete unit, wherein the sensor assembly may for example be integrated into the sash of the window or, equivalently, the outer portion of the door.
  • a door/window may also be sold and delivered as a security-prepared door/window where the conductive element and glass unit metal foil may be pre-mounted and marking may indicate where the sensor assembly should be placed.
  • the glass removal sensor may be referred to as a window sensor assembly or a door sensor assembly.
  • the glass removal sensor is suitable both for windows that can be opened and windows of the type that cannot be opened, which have a replaceable glass unit, optionally in a frame.
  • a capacitive sensor in capacitive sensing generally refers to any material capable of propagating an external change of capacitance.
  • a capacitive sensor may be arranged such that an external object approaching it will increase the capacitance between a sensor node or conductive area and a reference point, such as a ground node or a secondary node/area.
  • the term 'capacitive connection' is used for a connection between two or more conductive elements separated by an insulator, where the capacitance between the elements is changed due to changes of the insulation layer such as changed size or insulation material characteristics. A change in distance between the elements may also change the capacitance between the elements.
  • a 'glass unit' is referred to as a sheet of glass (glass pane), which optionally has a frame holding the glass pane.
  • a glass unit may also be a framed or unframed double-pane or triple-pane glass unit.
  • An example of a 'glass unit' can be found in fig. 9 .
  • the glass pane 3 and its frame 4 constitute the glass unit, which may be replaced.
  • a 'sash' of a window is the frame of the part of the window that opens and closes.
  • An example is shown in fig. 9 , where the 'sash' (8) holds the 'glass unit' (4 and 3)
  • the type of burglary that is prevented by the presently disclosed window sensor is the separation of the 'glass unit' from the 'sash'.
  • the 'sash' is typically the part of the movable part of the window that has a handle (28).
  • a door may be constructed equivalently to a window in the sense that it has an outer portion (corresponding to the 'sash' of a window) holding a glass unit.
  • a window typically further comprises a fixed frame or framework firmly attached to a wall in a fixed position.
  • the fixed frame has a 'head jamb' 26 , two 'side jambs' 25 and a 'sill' 27.
  • the presently disclosed glass removal sensor can be used both for windows and doors having a glass unit. Where the description refers to a window specifically, the skilled person will also acknowledge that the technology can be applied to a door.
  • the present invention relates to a door or window comprising a glass removal sensor for detecting removal of a glass unit from the sash of a window or a corresponding door frame.
  • the glass removal sensor comprises a sensor assembly having a capacitive sensor and at least a first conductive element connected, directly or indirectly, between the first conductive area of the sensor assembly and the glass unit such that removal of the glass unit from the sash causes a change of capacitance that can be measured by the capacitive sensor.
  • the sensor assembly comprises a capacitive sensor and at least a first conductive area in connection with the capacitive sensor.
  • Capacitance describes how the space between two conductors affects an electric field between them. If two conductive plates are placed close to each other and a voltage is applied, an electric field will be generated between the plates. In a capacitive sensor, a surface of the probe corresponds to one of the plates, whereas an external plate or object corresponds to the second plate. When the distance between the two plates is changed, a capacitance change will occur. When this change exceeds a predetermined value, the capacitive sensor generates a signal.
  • the glass removal sensor further comprises at least a first wire attached, directly or indirectly, between the first conductive element and the glass unit of the window/door such that when the glass unit is removed from a sash of the window it causes a change of capacitance detected by the capacitive sensor.
  • the first conductive wire and a parallel second conductive wire having wire-end conductive areas in both end are arranged between the sensor assembly and a second conductive element attached to the glass unit, and another embodiment in which the wire is used to pull the first conductive element away from a position adjacent to the sensor assembly when the glass unit is removed from the sash.
  • the sensor assembly is a very thin assembly, such as having a maximum height of less than 5 mm, which is mounted on a surface of the sash. The thin design of the sensor assembly may allow the sensor assembly to be positioned between the sash and the fixed frame of the window when the window is closed.
  • the sensor assembly can be placed in a groove of the sash or even inside the sash. If the sash is hollow and possibly filled with an insulating material, a cavity can be formed in the sash by removing the insulation so that the sensor assembly can be positioned inside the sash. In any of the above placements, the sensor assembly can be hidden from potential intruders and may not be easily removed. In addition, the sensor assembly is protected from environmental exposure like sunshine and precipitation.
  • the first conductive element may be capacitively connected to the first and second conductive area of the sensor assembly.
  • the first conductive element may comprise two conducting wires with a conductive area in each of the four ends.
  • the first conductive element is a single conductive area that capacitively short circuits the first and the second capacitive area in the sensor assembly.
  • the first conductive element may be a first piece of foil, such as a metal foil, such as aluminum foil, or copper foil, or steel foil, or gold foil or metal tape, exemplified in fig. 3 and 4 .
  • the first conductive element may be arranged to cover the first conductive area and the second conductive area of the sensor assembly at least partly when the sensor assembly is placed in its position against the sash.
  • the first conductive element may be adapted to be mounted between the sensor assembly and the sash.
  • the first conductive element is not attached to the sensor assembly, but may be attachable to the sash. In case the sensor assembly is positioned in a groove of the sash, the first conductive element may accordingly be positioned in the same groove.
  • the first conductive element will typically be further connected to an arrangement at or adjacent to the glass unit, which will create the change of capacitance.
  • the glass removal sensor may therefore further comprise a second conductive element attachable to the glass unit.
  • An example of such a second conductive element (10) is shown in fig. 2 in the form of a metal foil.
  • the second conductive element may be a piece of foil, such as a metal foil, such as aluminum foil, or copper foil, or steel foil, or gold foil or metal tape.
  • the first and second conductive areas may be connected using the first wire and a parallel second wire and a second conductive element connecting the first and second wires.
  • the first wire may by any wire and not necessarily a conducting wire.
  • the first wire may be attached to the glass unit, optionally attached to an attachment element which is attached to the glass unit, and configured such that when the glass unit is removed from the sash, the first wire pulls the first conductive element away from the first conductive area.
  • the first conductive element may be pulled through a hole in the sash.
  • the capacitive sensor will detect a change in the measured capacitive value as a consequence of the first conductive element being removed from the conductive area.
  • the sensor assembly which preferably is an elongated and thin sensor assembly, may further comprise:
  • the microprocessor may be any kind of processing unit implemented in a circuit configured to: detect one or more changes of state of the capacitive sensor and optionally other sensors.
  • the maximum height/thickness of the sensor assembly should be kept to a minimum, i.e. preferably less than 5 mm, more preferably less than 4.5 mm, yet more preferably less than 4 mm, or less than 3.5 mm, even more preferably less than 3 mm, yet more preferably less than 2.5 mm, even more preferably less than 2 mm, possibly less than 1.5 mm or less than 1 mm.
  • the power source may be an ultrathin battery having a thickness below 2.0 mm, preferably less than 1.0 mm, even more preferably less than 0.5 mm.
  • the battery may be flat, thin and elongated. This may result in the sensor assembly having a minimum length of 100 mm.
  • the sensor assembly may have at least a first conductive area separated from the ground plane by a first insulation layer, preferably wherein the first insulation layer is integrated in the bottom side of the sensor assembly, and/or wherein the second conductive area is separated from the ground plane by a second insulation barrier.
  • the first and second conductive areas are arranged in the same PCB layer, which is typically an outer layer, arranged towards the first conductive element.
  • the first and second conductive areas may thereby form two parallel capacitors with one or several metal foils positioned at the areas.
  • a piece of tape, coating or layer of enamel paint may serve as an insulation layer between the first and second conductive areas and the metal foil(s).
  • the first and the second conductive areas may be part of a PCB, wherein the PCB may constitute the bottom side of the sensor assembly.
  • Fig. 5A shows an embodiment of an elongated sensor assembly with double conductive areas on the bottom side connected to a first capacitive sensor, a ground plane and a third conductive area connected to a second capacitive sensor.
  • the assembly may have one or several conductive areas connected to a capacitive sensor.
  • the capacitive sensor referred to is configured to detect changes in response to an externally generated change in conductivity between two or more conductive areas, wherein one area may be connected to the capacitive sensor and the other conductive area is connected to ground or another reference.
  • the sensor assembly may be further configured for detecting if the window is open or closed.
  • the sensor assembly may therefore further comprise at least one sensor switch, such as a magnetically activated reed switch, configured to detect a given state and a change of state between the given state and at least one other state.
  • the at least one sensor switch may be configured to detect whether a window or door is open or closed.
  • the arrangements of the first conductive element, and/or the second conductive element in relation to the sensor assembly and the glass unit may be used to detect the removal of the glass unit from the sash.
  • the capacitance between the first conductive area and a reference point of the sensor assembly changes due to a broken electrical contact between for example the two wires of the first conductive element.
  • the change of capacitance could also be a change caused by a broken electrical or capacitive contact between the first and/or second or due to a change in distance between the first conductive element and the first conductive area, or due to a change in relative position of the first and second conductive elements.
  • the change of capacitance registered by the capacitive sensor may also be caused by breaking the first wire and/or the second wire when the glass unit is removed from the sash.
  • the conductive element(s) and wire(s) may take a number of shapes and may be made of different materials.
  • the first and/or second may be electrically and/or magnetically conductive elements.
  • the elements can be implemented in the form of conductive paint. For example, a layer of conductive paint can be applied to the glass unit and a corresponding layer of paint on the sash. A conductive paint is easy to apply. If a wire is used, an end of the wire can be painted or positioned in the wet paint and when the paint has dried, the wire is firmly connected to the paint and there is a conductive connection between the paint and the end of the wire.
  • the first and/or second conductive elements may alternatively be configured for attachment to the sash of the window using an adhesive, or Velcro, or single-sided tape, or double-sided tape, or glue.
  • the first and/or second conductive element may be mounted on a piece of foam, preferably wherein the foam has an adhesive side, such that the foam is located between the conductive element and the sash.
  • the thickness of the foam may be less than 10 mm, preferably less than 5 mm, more preferably less than 3 mm, even more preferably less than 1 mm.
  • the first and second wires may be made of electrically conductive material, such as copper, or steel, or brass, or aluminum, or gold. In arrangements where the wire(s) are only used to pull for example the first conductive element away from the conductive area of the sensor assembly when the glass unit is removed, the wire(s) do not necessarily have to be conductive.
  • the first and/or second wire(s) can also be a metal pin or nail, optionally with a pointed end.
  • a metal pin can protrude from the rear side of the sensor assembly. If the spacer of a double-pane or a triple-pane is partly made of metal, the metal pin can be arranged to extend through the case to come in close proximity of the spacer as a capacitive element.
  • the glass removal sensor may be any embodiment of the presently disclosed glass removal sensor, comprising any embodiment of the presently disclosed sensor assembly.
  • the window or door may further comprise a fixed frame or framework, which can be mounted in the window opening of a building, for example a frame as shown in fig. 9 .
  • the window may thereby be sold and delivered as a complete unit, wherein the sensor assembly may for example be integrated into the sash.
  • the glass removal sensor may serve both as a wireless alarm of the type that indicates whether the window is opened or closed and an alarm indicating when the glass unit is removed from the sash.
  • the sash may have a through hole or a slot, through which a first and/or second wire of the glass removal sensor can be inserted to connect the sensor assembly and the glass unit.
  • the window may be of any type that has a sash holding a glass unit as defined in the present disclosure. Types of windows include an awning window, a casement window, a double hung window, a gliding window, a double hung window, and single hung window.
  • the glass removal sensor can be installed in any of these window types.
  • the window can also be of the type that cannot be opened, still having a replaceable glass unit in a frame.
  • Fig. 1 shows a first embodiment of the presently disclosed glass removal sensor (1) with a glass unit (2) and sash (8).
  • the glass unit (2) has a pane (3) and a glass frame (4).
  • the sash (8) is shown as two pieces, which are, however, part of the same sash (8).
  • Two different views of the sash (8) are shown to illustrate how the sensor assembly (5) may be located on one side, in this case the side on the opposite side of the glass unit (2), whereas the second conductive element (10) is attached to the glass unit (2).
  • the sensor assembly (5) is placed such that the capacitive sensor (16), or at least the first conductive area (6) (preferably there are two conductive areas (6, 11)) is located adjacent to the first and third wire-end conducting areas (14, 15) of the first conductive element (7).
  • a major part of the visible side of the sensor assembly may be ground, which is typically separated from the first conductive area (6) by means of for example a minimum distance or a barrier.
  • the ground may constitute the second conductive area (11), as shown in the figure.
  • the first conductive area (6) may be positioned against one of the two wire-end conductive areas (14, 15), and the second conductive area (11) may be positioned against the second wire-end conductive area (15).
  • Conductive first and second wires (12, 13) extend through a hole (9) in the sash (8).
  • the wires may be attached to two different conductive areas, a first conductive area (6) and a second conductive area (11) (which may be ground as shown in fig. 1 ), of the sensor assembly.
  • the wires are connected to a second conductive element (10) in the form of a foil (10) with second and fourth wire-end conducting areas (14, 15) mounted on the sash (8) on the side facing the glass unit (2). Removal of the glass unit (2) from the sash (8) causes a change of capacitive load, which is sensed by the capacitive sensor (16).
  • Fig. 2 shows the first embodiment of the presently disclosed glass removal sensor with a glass unit (2).
  • the first conductive element (7) is arranged between the sensor assembly and the glass unit (5).
  • the first conductive element comprises a first wire (12) having first and second wire-end conductive areas (14).
  • the first wire-end conductive area (14) is arranged towards the corresponding first conductive area (6) of the sensor assembly.
  • the second wire-end conductive area (14) is arranged towards the second conductive element (10).
  • the second wire (13) comprises a third wire-end conductive area (15) towards a corresponding second conductive area (11) of the sensor assembly, which is connected to ground.
  • the wire further comprises a fourth wire-end conductive area (15) in the other end towards the glass unit (15), the area located towards the second conductive element (10).
  • Fig. 3 shows a second embodiment of the presently disclosed glass removal sensor (1) with a glass unit (2) and sash (8).
  • the glass unit (2) has a pane (3) and a glass frame (4).
  • the sensor assembly (5) is placed such that the conductive area (6), and the ground area, which may be the second conductive area (11), are located towards the first conductive element (7) in the form a foil.
  • the foil is not attached to the sash (8).
  • a wire (12) is attached to the first conductive element (7) through a hole (9) in the sash (8).
  • the opposite end of the wire (12) is attached to an attachment element (15) in the form of a foil, which is attached to the frame (4) of the glass unit (2).
  • the wire may be attached to the glass unit (2) in any suitable way, using any suitable attachment element. Removal of the glass unit (2) from the sash (8) causes the wire to pull the first conductive element (7) through the hole (9). When the first conductive element (7) is pulled away from the conductive area (6), it causes a change of capacitive load, which is sensed by the capacitive sensor (16). The first conductive element (7) covers at least a part of the first conductive area (6) and at least a part of the second conductive area (11).
  • Fig. 4 shows the second embodiment of the presently disclosed glass removal sensor with a glass unit (2).
  • the first conductive element (7) is arranged between the sensor assembly and the glass unit (2).
  • the conductive element (7) makes a resistive or capacitive short circuit between the first conductive area (6) and the second conductive area (11). If the conductive element (7) is removed or broken the connection between the capacitive sensor and ground is removed, which causes a change in capacitance measured by the capacitive sensor.
  • the conductive element (7) is connected to the glass unit (2) by means of a physical wire (12).
  • Fig. 5A shows an embodiment of an elongated sensor assembly (5) with a first conductive area (6) and a ground plane (18) on the bottom side of the assembly.
  • the sensor assembly further comprises additional conductive areas (6').
  • the assembly comprises a capacitive sensor (16).
  • the assembly has two longer edges (19).
  • Fig. 5B is a side view of the elongated sensor assembly (5).
  • the elongated sensor assembly has a thickness h . It can be seen that the conductive areas (6) are part of a PCB (20) which constitutes the bottom side (20) in this embodiment.
  • Fig. 6 shows an example bottom side in the form of a printed circuit board of an elongated sensor assembly.
  • the bottom side (backside) of the printed circuit board has a first conductive area (6) in the form of a rectangular area.
  • a first rectangular isolation barrier (17) separates the first conductive area (6) from the ground plane (18).
  • the capacitive sensor (16) is placed on the top side of the PCB and is not visible in fig. 6 .
  • the sensor assembly further comprises additional conductive areas (6'), which may or may not be used as part of the glass removal sensor.
  • Fig. 7 shows the components of an exemplary glass removal sensor (1) having a sensor assembly (5) and a conductive element (7) connected to a glass unit (2) through a second conductive element (10) in the form of a metal foil.
  • the conductive element comprises two parallel conductive wires (12, 13)
  • the sensor assembly comprises an antenna system (22), a microprocessor (21), a wireless transmitter (23) (typically a wireless transceiver) and a power source (24).
  • the skilled person will recognize that there are a number of options for implementing wireless communication, including for example transmitter/receiver/transceiver configured to communicate wirelessly using for example Z-Wave, ZigBee, Bluetooth, or Bluetooth Low Energy (BLE) based communication protocols.
  • Fig. 8 shows the components of another exemplary glass removal sensor (1) having a sensor assembly (5) and a conductive element (7) connected to a glass unit (2).
  • Fig. 9 shows an example of a window comprising a pane (3) and a frame (4) together forming a glass unit (3 and 4).
  • a sensor assembly (5) can be seen on the bottom side of the sash (8) of the window.
  • the sensor assembly (5) is not visible when the window is closed.
  • the rest of the glass removal sensor (1), i.e. further conductive elements are not visible in fig. 6 .
  • the sash (8) has a handle (28) for opening and closing the window.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Geophysics And Detection Of Objects (AREA)
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Claims (8)

  1. Fenster oder Tür, umfassend einen Glasentfernungssensor (1) zum Erfassen der Entfernung einer Glaseinheit (2) des Fensters oder der Tür mit einer Glasscheibe (3) und optional einem Glasrahmen (4), wobei der Glasentfernungssensor (1) Folgendes umfasst:
    - eine Sensorbaugruppe (5), umfassend einen kapazitiven Sensor (16); einen ersten leitenden Bereich (6) in Verbindung mit dem kapazitiven Sensor (16); und einen zweiten leitenden Bereich (11) ;
    - mindestens ein erstes leitendes Element (7), das direkt oder indirekt zwischen dem ersten leitenden Bereich (6) der Sensorbaugruppe (5), dem zweiten leitenden Bereich (11) der Sensorbaugruppe (5) und der Glaseinheit (2) des Fensters oder der Tür verbunden ist, sodass, wenn die Glaseinheit (2) aus einem Rahmen (8) des Fensters oder der Tür entfernt wird, es eine Kapazitätsänderung in dem ersten leitenden Bereich (6) relativ zu dem zweiten leitenden Bereich (11) der Sensorbaugruppe (5) verursacht; wobei die Sensorbaugruppe (5) dazu konfiguriert ist, die Entfernung der Glaseinheit (2) aus dem Rahmen (8) des Fensters oder der Tür als die durch den kapazitiven Sensor (16) erfasste Kapazitätsänderung zu erfassen, dadurch gekennzeichnet, dass die Sensorbaugruppe ferner Folgendes umfasst:
    - mindestens einen ersten Draht (12), der direkt oder indirekt zwischen dem ersten leitenden Element (7) und der Glaseinheit (2) des Fensters oder der Tür anbringbar ist, sodass, wenn die Glaseinheit (2) aus dem Rahmen(8) entfernt wird, er eine Kapazitätsänderung im ersten leitenden Bereich verursacht, wobei der erste Draht (12) an der Glaseinheit (2) angebracht ist, optional an einem Anbringungselement (29) angebracht ist, das an der Glaseinheit (2) angebracht ist, und so konfiguriert ist, dass, wenn die Glaseinheit (2) aus dem Rahmen(8) entfernt wird, das erste leitende Element (7) von dem ersten leitenden Bereich (6) und dem zweiten leitenden Bereich (1) weggezogen wird.
  2. Fenster oder Tür nach Anspruch 1, wobei der zweite leitende Bereich (11) mit der Masse oder mit einem Referenzpunkt der Sensorbaugruppe (5) verbunden ist.
  3. Fenster oder Tür nach einem der vorhergehenden Ansprüche, wobei das erste leitende Element (7) ein erstes Folienstück ist, wie etwa eine Metallfolie, wie etwa Aluminiumfolie oder Kupferfolie oder Stahlfolie oder Goldfolie, oder ein Metallband.
  4. Fenster oder Tür nach einem der vorhergehenden Ansprüche, wobei das erste leitende Element (7) so angeordnet ist, dass es den ersten leitenden Bereich (6) und den zweiten leitenden Bereich (11) der Sensorbaugruppe (5) bedeckt.
  5. Fenster oder Tür nach einem der vorhergehenden Ansprüche, wobei die Sensorbaugruppe (5) eine maximale Höhe von weniger als 5 mm aufweist.
  6. Fenster oder Tür nach einem der vorhergehenden Ansprüche, ferner umfassend ein zweites leitendes Element (10), das an der Glaseinheit (2) anbringbar ist.
  7. Glasentfernungssensor nach einem der vorhergehenden Ansprüche, wobei die Massefläche und der erste leitende Bereich Teil einer PCB sind, wobei die PCB die Unterseite der Sensorbaugruppe darstellt.
  8. Fenster oder Tür, umfassend einen Glasentfernungssensor (1) zum Erfassen der Entfernung einer Glaseinheit (2) des Fensters oder der Tür mit einer Glasscheibe (3) und optional einem Glasrahmen (4), wobei der Glasentfernungssensor (1) Folgendes umfasst:
    - eine Sensorbaugruppe (5), umfassend einen kapazitiven Sensor (16); einen ersten leitenden Bereich (6) in Verbindung mit dem kapazitiven Sensor (16); und einen zweiten leitenden Bereich (11) ;
    - mindestens ein erstes leitendes Element (7), das direkt oder indirekt zwischen dem ersten leitenden Bereich (6) der Sensorbaugruppe (5), dem zweiten leitenden Bereich (11) der Sensorbaugruppe (5) und der Glaseinheit (2) des Fensters oder der Tür verbunden ist, sodass, wenn die Glaseinheit (2) aus einem Rahmen(8) des Fensters oder der Tür entfernt wird, es eine Kapazitätsänderung in dem ersten leitenden Bereich (6) relativ zu dem zweiten leitenden Bereich (11) der Sensorbaugruppe (5) verursacht, wobei die Sensorbaugruppe (5) dazu konfiguriert ist, die Entfernung der Glaseinheit (2) aus dem Rahmen (8) des Fensters oder der Tür als die durch den kapazitiven Sensor (16) erfasste Kapazitätsänderung zu erfassen, dadurch gekennzeichnet, dass die Sensorbaugruppe ferner Folgendes umfasst:
    - ein zweites leitendes Element (10), das an der Glaseinheit (2) angebracht ist;
    wobei das erste leitende Element (7) einen ersten Draht (12) und einen parallelen zweiten Draht (13) umfasst,
    wobei der erste Draht (12) einen ersten leitenden Bereich (14) am Drahtende in Richtung des ersten leitenden Bereichs (6) der Sensorbaugruppe (5) umfasst, und wobei
    der erste Draht (12) einen zweiten leitenden Bereich (14) am Drahtende in Richtung des zweiten leitenden Elements (10) umfasst,
    wobei der zweite Draht (13) einen dritten leitenden Bereich (15) am Drahtende in Richtung des zweiten leitenden Bereichs (11) der Sensorbaugruppe (5) umfasst, und
    wobei der zweite Draht (13) einen vierten leitenden Bereich (15) am Drahtende in Richtung des zweiten leitenden Elements (10) umfasst.
EP19218762.3A 2018-12-21 2019-12-20 Glasentfernungssensor zur erfassung der entfernung einer scheibe von einem fenster oder einer tür Active EP3670811B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809436B2 (de) * 1978-03-04 1980-04-10 Gabriele 7890 Waldshut- Tiengen Koechlin Kapazitive Sicherungsanordnung für scheibenförmige, elektrisch nichtleitende Objekte
GB8603049D0 (en) * 1986-02-07 1986-03-12 Murdoch J W Security system
GB8703887D0 (en) * 1987-02-19 1987-03-25 Hickman J A A Glazing unit alarm system
US10720033B2 (en) * 2013-09-19 2020-07-21 Sensative Ab Elongated wireless sensor assembly

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