WO2010000082A1 - Dispositif de détection de bris de verre sur un vitrage isolant - Google Patents

Dispositif de détection de bris de verre sur un vitrage isolant Download PDF

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Publication number
WO2010000082A1
WO2010000082A1 PCT/CH2009/000197 CH2009000197W WO2010000082A1 WO 2010000082 A1 WO2010000082 A1 WO 2010000082A1 CH 2009000197 W CH2009000197 W CH 2009000197W WO 2010000082 A1 WO2010000082 A1 WO 2010000082A1
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WO
WIPO (PCT)
Prior art keywords
housing
alarm
board
glass
transmitter
Prior art date
Application number
PCT/CH2009/000197
Other languages
German (de)
English (en)
Inventor
Thomas Pleisch
Sandro Janki
Original Assignee
Glasfreunde Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Glasfreunde Gmbh filed Critical Glasfreunde Gmbh
Priority to EP09771889A priority Critical patent/EP2300996A1/fr
Publication of WO2010000082A1 publication Critical patent/WO2010000082A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/20—Status alarms responsive to moisture
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Definitions

  • the invention relates to a device for glass-breakage detection in insulating glazing according to the preamble of patent claims 1 and 22.
  • films applied to the disk with conductor loops can already be inadvertently damaged by cleaning the glass surface or by other solid objects rubbing against it. A resulting false alarm can lead to that the glass breakage detector is deactivated. In many cases it is also forgotten or omitted to replace damaged glass breakage detectors.
  • DE 2933371 discloses an insulating glass unit with an alarm device consisting of at least two parallel glass panes, one extending around the edge of the unit, arranged between the glass panes sealing and connecting member, a standing at about atmospheric pressure gas filling in the glass panes and the sealing and Connecting member formed interior and a sensor attached to the unit, which is in contact with the gas filling.
  • the sensor has an electronic component which sends a signal into a connection line as soon as the value of a physical or chemical property of the gas filling measured by the sensor deviates from the nominal value by more than a predetermined amount.
  • An alarm system which can be triggered by a signal emitted by the sensor can be connected to the electrical connection line.
  • the sensor with electronic component can be arranged invisibly from the outside in a recess of the sealing and connecting element. In the case that the spacer has the shape of an aluminum hollow profile, the sensor can be accommodated in the cavity of the Profus.
  • the measuring sensor has a hot conductor surrounded by the gas filling, which measures the heat conductivity of the gas filling by determining the electrical conductivity of the hot conductor.
  • the electrical conductivity of the gas filling is measured by means of a capacitor.
  • DE 2933371 suggests that in principle also other measuring principles could be used, such as the mood of the atmospheric humidity or the speed of sound, but does not give any concrete teaching.
  • a disadvantage is that air can not be used as filling gas, since in this case the electrical conductivity of the filling gas and the air surrounding the insulating glass unit do not differ.
  • DE 3923395 shows a glass composite unit with a device for securing the glass composite unit against burglary and sabotage.
  • a gas moisture sensor unit is provided between at least two panes of the glass composite unit. Their threshold is set to a predetermined absolute lower gas humidity value.
  • the gas humidity sensor unit emits an alarm signal when measuring such a gas humidity value or an overlying one.
  • the gas humidity sensor unit is connected to one of the spacers which space the glass panes or to one of the angular elements which serve to connect the spacers. Wire strands lead from the gas moisture sensor unit into an evaluation circuit located outside the glass composite unit.
  • a disadvantage of this alarm device is that the guided through the cable strands signals are not reliable against manipulation z. B. are protected by magnetic fields. Another disadvantage is that the device is only able to measure absolute values. Aging effects resulting from the fact that the moisture in the gas filling increases as the service life progresses can not be taken into account.
  • a glass break alarm device with a humidity sensor which is arranged in the cavity between two glass panes of a multiple glazing.
  • the humidity sensor is connected to a detector, which is placed outside the multiple glazing.
  • the detector has two alarm outputs, a first alarm output, which is triggered by a sudden increase in humidity, and a second alarm output, which is triggered by a continuous alarm. a gradual increase in humidity above a defined threshold is activated.
  • a disadvantage of the glass break alarm device is that the moisture sensor is clearly visible through the window panes. Observers can easily determine that the glazing has a monitoring device. This may allow potential burglars to bypass the alarm.
  • a further disadvantage is that a detector unit, a power supply and separate alarm devices are required for each moisture sensor. Without these separate alarms, it would not be possible to determine which glazing has become defective in a plurality of monitored glazings.
  • a cable feedthrough must be provided by at least one disc or the spacer center holder.
  • FR 2 908 913 shows an alarm device for equipping double-glass windows or showcases.
  • a humidity sensor is placed in the space between the two panes of double glazing. An alarm is generated when the humidity in the space increases.
  • the object of the present invention is therefore to propose a glass breakage alarm device and an insulating glazing with such a glass breakage alarm device, which can be manufactured more cost-effectively than existing alarm glasses with electrically conductive loops.
  • Another goal is to provide a glass break alarm device that can detect a defective insulating glazing directly on site.
  • Another aim is to propose a glass break alarm device which can interact with existing alarm systems equipped with electrically conductive loops.
  • a further aim is to show a glass breaking device which can be integrated in insulating glazings without having to replace or adapt existing gas fillings. It is also the aim to propose a device that can be integrated in multiple glazing independently of the manufacturer.
  • Another goal is to propose a glass break alarm device, which monitors several separate glazing and only requires an external alarm device. In addition, it is the goal To show a glass break alarm device, which has a high security against manipulation.
  • the object is achieved by a device according to the preamble of claim 1, characterized in that the moisture sensor and the evaluation are designed as a component. Due to the integral construction, the device can be adapted to existing alarm systems. Alarm systems with alarm glasses, which are equipped with electrically conductive loops, can be retrofitted with the device according to the invention. This is of particular advantage when a broken, in the recovery very expensive alarm glass is replaced by the component in combination with a commercial insulating glazing. Another advantage is that no cable connections are needed to connect the humidity sensor to an external transmitter. Due to the fact that it is possible to dispense with cable connections between the moisture sensor and the evaluation electronics, the device is reliably protected against sabotage attacks, which aim at transmitting signal lines z. B. to manipulate by magnetic fields. It is also an advantage that the detection device can be extremely compact in terms of dimensions. As a result, the installation is made possible directly into the spacer means of insulating glazing.
  • the transmitter comprises a microprocessor with associated memory, in which memory an evaluation program is included. Due to the presence of an evaluation program, the detection device can be individually adapted to insulating glasses from different manufacturers with different gas fillings. Another advantage is that the measured values can be continuously recorded. Changes in the relative humidity in the insulating glazing, the cause of which are aging effects or unavoidable fluctuations in large-area panes, are recognized as such and do not trigger an alarm. Yet another advantage is that when the detection device is first or restarted, the relevant threshold values can be preloaded into the memory.
  • the evaluation electronics has an interface via which the evaluation program can be loaded into the memory. This not only the Respective specifications of the gas filling of the used insulating glazing are taken into account, but it can also later necessary adjustments or updates are loaded into the memory.
  • Alarm and / or operating state So can be dispensed with a complex central monitoring of the individual detection units.
  • the sheath is advantageously in a distance profile of a double glazing, the z. B. made of aluminum, can be used.
  • the envelope may, for. B. be designed as a housing. It is also conceivable that the component is cast in an insulating material. The insulating material is precisely and easily adaptable to the distance profile used.
  • the component has a single printed circuit board equipped with the moisture sensor and the evaluation electronics, wherein the moisture sensor is located on a first side of the circuit board and connection contacts for the energy source on one of the first opposing second side of the circuit board.
  • the moisture sensor quickly and reliably detects moisture changes due to breakage of the outer glass and the entry of ambient air.
  • Another advantage is that elaborate breakthroughs for cable bushings can be avoided by at least one disc or spacer spacer.
  • the board preferably has an elongated shape and the length of the board is a multiple of the width. An elongated design allows the board to fit even in the smallest distance-keeping devices on the market.
  • the board is sufficiently protected when installed in the spacer means and can be installed quickly, it proves to be advantageous to arrange the board in the cavity of a housing.
  • the housing is preferably made of plastic in a non-conductive material, whereby short circuits between the board and the spacer means can be avoided. Another advantage is that the installation in the spacer means designed uncomplicated.
  • the housing preferably has at least one opening on the first side of the board. This opening ensures that the humidity sensor is in constant contact with the space between the panes and that the response time is short.
  • a further opening is provided for a light-emitting diode arranged on the board.
  • the housing may also consist of a transparent material.
  • at least one further opening is advantageously provided, through which a hardening non-conductive sealing means, preferably silicone, can be applied. The sealant fills in cavities between the board and the housing and ensures a vibration-free recording of the board in the housing.
  • connection contacts for connecting a power source and / or an alarm encoder is present.
  • the cable connections which serve to connect the connection contacts with the energy source and / or the alarm, can only be connected to the connection contacts of the board after the construction of the insulating glazing.
  • the housing expediently has a middle part, to which two insertion ends connect on opposite sides.
  • Each of the two insertion ends is advantageously designed so that a distance-holding means for the panes of insulating glazing can be pushed over it in a form-fitting manner.
  • the middle part of the housing projects beyond the insertion ends.
  • the middle part advantageously projects beyond the insertion ends at most by the wall thickness of the spacer center holder, so that complete bonding to the pane and casting of the encircling casting area between the panes can be carried out unhindered.
  • the male ends can advantageously have sawtooth-like formations on their surfaces. Thereby, a frictional connection, which is realized between the sawtooth-like formations and the spacer means, can be ensured.
  • the connection between the insertion ends and the spacer means is difficult to solve.
  • the board may advantageously extend into at least one insertion end.
  • the length of the middle part is short and it is only a short break in the spacer means for the installation of the housing necessary.
  • the housing is advantageously divided in its width along a separation surface in two housing halves.
  • the two housing halves are identical. This has the advantage that only one injection mold for the production of the two housing parts is needed.
  • the two housing halves have two different widths housing halves.
  • This has the advantage of being able to realize housing widths which are adaptable to many of the distance-stop widths available on the market.
  • the housing widths can be adapted by the combination of a small number of different widths housing halves (eg, 5, 7, 8 mm) to the dimensions of the commercial distance holding means having widths of 10, 12, 13, 14, 15, 16 mm.
  • an evaluation is provided, which has a monitoring and an output mode.
  • the modes are expediently activated by different supply voltages. This has the advantage that in addition to a rapid increase in humidity and absolute humidity values can be measured.
  • the device can also be used in quality control.
  • connection for the alarm transmitter on two contact points. Between the contact points in the normal state, a low electrical resistance and in the alarm state, a high electrical resistance is present.
  • This configuration has the advantage that the device can serve as a replacement for current loop based safety devices. In the latter case, the current loop is conductive in the normal state, i. the electrical resistance is very low and interrupted in the alarm state (high resistance).
  • the present invention also provides a device for Glasbruchdetekti- on a double glazing according to the preamble of claim 22.
  • a device for Glasbruchdetekti- on a double glazing according to the preamble of claim 22.
  • the integration of the evaluation electronics within the insulating glazing offers the advantage that an alarm condition can generally be displayed directly in the insulating glazing.
  • Another advantage is that in the case of multiple monitored glazing only an external alarm must be provided because the alarm outputs of multiple detection devices can be connected in series.
  • a further advantage is that a detection device according to the invention can be used as a replacement for an alarm device based on a current loop.
  • the detection device according to the invention can also be used in insulating glazings which use completely normal non-tempered glass. Furthermore, the integration of the evaluation electronics has the advantage that the manufacturing process of the insulating glazings does not have to be significantly changed - this, in contrast to the complex manufacturing process of alarm glass, in which electrically conductive loops are burned into a safety glass.
  • the moisture sensor is arranged in such a way that the inter-pane space can be monitored, which is bounded on one side by an exposed pane of glass. As an exposed glass is to be considered one that is accessible for damage acts. In the case of windows or doors of buildings, this is generally the outside glass facing outside. For shop windows, it is the pioneering glass pane. In the case of showcases, climate cabinets and the like, it is the outer, the viewer facing glass.
  • the invention is applicable to all types of insulating glazings, in which gas and moisture-tightly connected glass panes delimit a space between the panes.
  • the space between the panes is filled with a gas which has a defined degree of humidity.
  • Suitable filling gases for the space between the panes are, in particular, air, noble gases or inert gas mixtures. The moisture of these gases is regularly almost zero.
  • a drying agent is arranged in a further embodiment of the invention in the immediate vicinity of the space between the panes defined by the gas-tight and moisture-tight glass panes.
  • the desiccant despite the sealing in the space between the panes, absorbs diffused moisture and ensures constant, deep moisture conditions.
  • the desiccant is housed in a known manner in the spacer of the insulating glazing.
  • the insulating glazing with monitoring of the space between panes by a humidity sensor can be attached to a window, a door, a shop window or the like. But it can also be used on showcases, climate cabinets or similar storage be provided furniture.
  • a security system can be part of an alarm system. It can be wired or via wireless communication.
  • the humidity sensor is additionally designed for monitoring the temperature in the space between the panes. If the temperature falls below or exceeds a predefinable threshold temperature and / or if a predeterminable temporal temperature gradient is undershot or exceeded, an alarm signal can be generated.
  • a moisture sensor in a double glazing which comprises two glass and moisture-tightly interconnected glass panes, which define a space between the panes, as a glass breakage sensor
  • the humidity sensor is relatively insensitive to external influences and allows a reliable detection of changes in humidity and / or temperature in the monitored space between the panes, thereby allowing an immediate conclusion on the breakage of the exposed pane of glass.
  • an alarm can be generated, security personnel can be activated and / or a monitoring device with a recording function can be set in motion.
  • each device for glass breakage detection has its own power supply. This ensures their function, even if, for example, adjacent glass breakage detectors have been put out of operation.
  • the activation of the glass breakage detectors is advantageously regulated in such a way that an alarm signal can be generated in the event of an unauthorized interruption of the power supply. This counteracts manipulations of the security system.
  • Figure 1 is a plan view of a device for glass breakage detection with a arranged on a board moisture sensor and associated with this evaluation;
  • Figure 2 is a side view of the device of Figure 1;
  • Figure 3 Schematically and in longitudinal section the device of Figure 1 taken in a housing and installed in an insulating glazing;
  • Figure 4 is a cross-section taken along the line 4-4 in Figure 3;
  • FIG. 5 A partially cut-out insulating glazing with the device for glass-breakage detection from FIGS. 3 and 4 in the installed state.
  • Figures 1 and 2 show a device for glass breakage detection, the essential components of which are a humidity sensor 13, and evaluation electronics 17, which are arranged on a first side of a circuit board 11.
  • a light-emitting diode 15 may be mounted on the circuit board 11.
  • On the second opposite side of the board 11 is a four pins existing contact 19 is present. Two pins of the plug serve as a terminal 21 for a power source. The other two contact pins serve as connection 23 for an alarm transmitter (see Figure 4).
  • the transmitter 17 consists essentially of a microcontroller comprising a microprocessor and with this associated memory (not shown in the figures).
  • the memory is a program recorded, which evaluates the signal originating from the moisture sensor and generates corresponding output signals.
  • the connection for the energy source 21 is connected to a voltage regulator 25 in connection, which transforms the supply voltage down to the operating voltage permissible for the operation of the electronic components arranged on the circuit board. In the present case, the supply voltage between 12 volts and about 40 volts.
  • the voltage regulator 25 is connected to the microcontroller 17 and the humidity sensor 13 and a switch 27 in connection. Due to the present supply voltage, the microcontroller 17 decides which operating mode is to be activated. Either the device is in a monitor or output mode.
  • the switch 27 serves as a command receiver in both modes of operation.
  • monitoring mode In monitoring mode, it normally generates a low-impedance output signal (corresponds to the uninterrupted conductor loop in the previous laminated glass) and, in the event of an alarm, a high-impedance output signal (corresponds to the interrupted conductor loop).
  • the switch 27 generates a bit string in the output mode for communication with a readout device.
  • the circuit is constructed so that when a supply voltage of 12 volts, the monitoring mode is activated. If, by contrast, a supply voltage of approximately 35 volts is applied, the microcontroller 17 activates the output mode.
  • differential changes in the moisture content are preferably detected. If the moisture content changes by more than a predefined threshold value within a certain period of time, then an alarm signal is triggered by setting the resistance value present at the connection for the alarm transmitter from low-impedance to high-impedance.
  • the output mode In the output mode, instantaneous values of the moisture content are detected. If the moisture content changes, the values calculated by the microcontroller 17 are forwarded directly to a read-out device (not shown in detail in the figures).
  • the light-emitting diode 15 is used for optical monitoring of the respective modes on site. If the detection device is in the monitoring mode, a light signal recurring at specific time intervals is displayed. When triggering the alarm signal, however, the LED 15 emits a continuous light signal. It is conceivable that in the case of malfunctions of the states described above deviating light signals are emitted by the diode.
  • the humidity sensor 13 is capable of detecting the current humidity.
  • sensors for monitoring the moisture are well known, for example from US 4,350,978, so that a description of the operation of the humidity sensor can be omitted.
  • the content of US 4,350,978 is hereby incorporated by reference into the present application.
  • the board 11 preferably has an elongated shape.
  • the length may be, for example, about 50 mm and the width about 5 mm. By this dimensioning, it is possible to arrange the detection device in distance holding means, which have only an extension of 10 mm or less.
  • Figures 3 and 4 show the device of Figure 1 and 2 incorporated in a housing and in an insulating glazing 29 installed.
  • the insulating glazing 29 consists of at least two glass panes 31 and 33 (see also FIG. 5) between which a space between panes 35 is defined.
  • a spacer means 37 defines the distance between the two glass sheets 31 and 33.
  • the circuit board 11 is accommodated in a housing 39.
  • the disc space 35 in the installed state facing side of the housing 39 has an opening 41 through which the moisture sensor 13 is in contact with the gas of the disc space 35.
  • a further opening 43 serves the light emitted by the light emitting diode 15 for passage into the interpane space 35.
  • the openings 41 and 43 may be arranged symmetrically to a center line which is normal to the longitudinal axis of the housing. Due to the symmetrical arrangement of the openings, the opening 41 and the light-emitting diode 15 serve as a passage. In such a mounting state of the board 11 is the contact of the humidity sensor 13 with the space between the panes 35 via the opening 43 is ensured.
  • On the second side of the housing 39 opposite the openings 41, 43 there is a recess 45. Through the recess 45, a connector 47 can be performed and connected to the contacts 19. At the connector 47, a connection cable 49 is soldered.
  • the housing 39 consists of two housing halves 39a and 39b, the separation surface through the openings 41, 43 and the recess 45 extends.
  • the incorporation of the board 11 into the housing 39 takes place in such a way that the board 11 is inserted into one housing half 39a and the other housing half 39b is placed thereon.
  • the housing half 39a and 39b each have Kunststoffausformungen not shown, which engage positively in the assembly during assembly. As a result, the housing 39 is closed positively.
  • the inserted circuit board 11 advantageously extends over almost the entire length of the housing 39.
  • the housing 39 has a cuboidal middle part 39c, to which two insertion ends 39d connect at opposite ends.
  • the dimensions of the central part 39c project beyond the dimensions of the insertion ends 39d in one direction up to the wall thickness of the spacer means 37.
  • the insertion ends 39d are dimensioned such that the spacer-holding means 37 can be pushed on both sides.
  • Sawtooth-like protrusions 40 on the housing surface of the male ends 39d ensure a frictional secure connection to the spacer-holding means.
  • the middle part 39c is used when attaching the Distanzhalte- 37 on both sides as a stop.
  • the production process in the production of insulating glazing 29 can be done by the integration of the housing 39 with it enclosed board 11 in a Distanzhalte- medium frame as in a conventional insulating glazing.
  • Both the application of a ButhylstMail 51 to seal the transition between the spacer means 37 and the glass panes 31 and 33 and the application of a Randvergusses 53 can be performed without distinction to the standard production method.
  • the above-described device according to the invention for glass-breakage detection in the case of insulating glazing 29 can be part of a security system and can be connected to an alarming and / or monitoring device for this purpose. This is done via the contacts 19 on the board 11.
  • Such a security system can in turn be part of an alarm system. It can be wired or via wireless communication.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

L'invention concerne un vitrage isolant (29) comprenant au moins deux dalles de verre (31, 33) écartées par une entretoise (37). Un détecteur d'humidité et une électronique d'analyse qui est reliée au détecteur sont placés à l'intérieur du vitrage isolant (29) et, de préférence, intégrés dans l'entretoise (37). Le détecteur d'humidité et l'électronique d'analyse sont disposés sur une carte commune qui est entourée d'un boîtier (39). Le boîtier (39) est formé de manière à pouvoir être inséré partiellement de part et d'autre dans l'entretoise (37).
PCT/CH2009/000197 2008-06-30 2009-06-11 Dispositif de détection de bris de verre sur un vitrage isolant WO2010000082A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09771889A EP2300996A1 (fr) 2008-06-30 2009-06-11 Dispositif de détection de bris de verre sur un vitrage isolant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9982008 2008-06-30
CH998/08 2008-06-30

Publications (1)

Publication Number Publication Date
WO2010000082A1 true WO2010000082A1 (fr) 2010-01-07

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PCT/CH2009/000197 WO2010000082A1 (fr) 2008-06-30 2009-06-11 Dispositif de détection de bris de verre sur un vitrage isolant

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EP (1) EP2300996A1 (fr)
WO (1) WO2010000082A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2519523A (en) * 2013-10-22 2015-04-29 Armco Key Security Ltd Intruder Alarm
WO2015154688A1 (fr) * 2014-04-10 2015-10-15 Armco Key Security Limited Alarme de fenêtre
US11460393B2 (en) * 2019-06-27 2022-10-04 The Insulating Glass Certification Council System and method for accelerated weathering testing of insulating glass units

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933371A1 (de) * 1979-08-17 1981-03-26 DCL Glass Consult GmbH, 8000 München Isolierglaseinheit mit alarmeinrichtung
US4350978A (en) * 1981-04-24 1982-09-21 Riccobono Paul J Humidity-sensitive broken panel alarm
DE3923395C1 (en) * 1989-07-14 1991-02-14 Oscar Von 3008 Garbsen De Wedekind Double glazed window unit sensing break-in - has sensor unit between panes enclosing gas to deliver alarm signal at certain level of gas vapour
DE29609521U1 (de) * 1996-05-29 1996-08-14 Biffar Kg Oskar D Überwachungsvorrichtung für einen verglasten Durchlaß
DE102004011159A1 (de) * 2003-06-24 2005-04-28 3D Detektion Gmbh Anordnung zur Überwachung des Zustands von Fahrzeug- oder Gebäudeöffnungen verschließenden Einrichtungen, wie Fenster oder Türen
EP1538577A2 (fr) * 2003-11-20 2005-06-08 Schollglas Holding- und Geschäftsführungsgesellschaft mbH Dispositif d'alarme pour panneau de verre
DE102006046859A1 (de) * 2006-10-02 2008-04-03 Scheller, Michael Verfahren zur Überwachung von Räumen über Sicherheitsisolierglaseinheiten
FR2908913A1 (fr) * 2006-11-17 2008-05-23 Sofratel Sarl Dispositif d'alarme anti-effraction integrant un capteur d'humidite dispose dans un double vitrage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933371A1 (de) * 1979-08-17 1981-03-26 DCL Glass Consult GmbH, 8000 München Isolierglaseinheit mit alarmeinrichtung
US4350978A (en) * 1981-04-24 1982-09-21 Riccobono Paul J Humidity-sensitive broken panel alarm
DE3923395C1 (en) * 1989-07-14 1991-02-14 Oscar Von 3008 Garbsen De Wedekind Double glazed window unit sensing break-in - has sensor unit between panes enclosing gas to deliver alarm signal at certain level of gas vapour
DE29609521U1 (de) * 1996-05-29 1996-08-14 Biffar Kg Oskar D Überwachungsvorrichtung für einen verglasten Durchlaß
DE102004011159A1 (de) * 2003-06-24 2005-04-28 3D Detektion Gmbh Anordnung zur Überwachung des Zustands von Fahrzeug- oder Gebäudeöffnungen verschließenden Einrichtungen, wie Fenster oder Türen
EP1538577A2 (fr) * 2003-11-20 2005-06-08 Schollglas Holding- und Geschäftsführungsgesellschaft mbH Dispositif d'alarme pour panneau de verre
DE102006046859A1 (de) * 2006-10-02 2008-04-03 Scheller, Michael Verfahren zur Überwachung von Räumen über Sicherheitsisolierglaseinheiten
FR2908913A1 (fr) * 2006-11-17 2008-05-23 Sofratel Sarl Dispositif d'alarme anti-effraction integrant un capteur d'humidite dispose dans un double vitrage

Non-Patent Citations (1)

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Title
FUJITA T ET AL: "Integrated multi-environmental sensing-system for the intelligent data carrier", SENSORS AND ACTUATORS A, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 97-98, 1 April 2002 (2002-04-01), pages 527 - 534, XP004361647, ISSN: 0924-4247, Retrieved from the Internet <URL:doi:10.1016/S0924-4247(01)00819-6> [retrieved on 20090902] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2519523A (en) * 2013-10-22 2015-04-29 Armco Key Security Ltd Intruder Alarm
WO2015154688A1 (fr) * 2014-04-10 2015-10-15 Armco Key Security Limited Alarme de fenêtre
US9947209B2 (en) 2014-04-10 2018-04-17 Armco Key Security Limited Window alarm
US11460393B2 (en) * 2019-06-27 2022-10-04 The Insulating Glass Certification Council System and method for accelerated weathering testing of insulating glass units

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Publication number Publication date
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