EP0358942A2 - Détecteur de bris de vitre - Google Patents

Détecteur de bris de vitre Download PDF

Info

Publication number
EP0358942A2
EP0358942A2 EP89114635A EP89114635A EP0358942A2 EP 0358942 A2 EP0358942 A2 EP 0358942A2 EP 89114635 A EP89114635 A EP 89114635A EP 89114635 A EP89114635 A EP 89114635A EP 0358942 A2 EP0358942 A2 EP 0358942A2
Authority
EP
European Patent Office
Prior art keywords
glass
break detector
glass break
detector according
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89114635A
Other languages
German (de)
English (en)
Other versions
EP0358942A3 (fr
Inventor
Wolfgang Dr. phil. nat. Schäfer
Ulrich Oppelt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telenorma Telefonbau und Normalzeit GmbH
Tenovis GmbH and Co KG
Original Assignee
Telenorma Telefonbau und Normalzeit GmbH
Telefonbau und Normalzeit 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 Telenorma Telefonbau und Normalzeit GmbH, Telefonbau und Normalzeit GmbH filed Critical Telenorma Telefonbau und Normalzeit GmbH
Publication of EP0358942A2 publication Critical patent/EP0358942A2/fr
Publication of EP0358942A3 publication Critical patent/EP0358942A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/04—Mechanical actuation by breaking of glass

Definitions

  • the invention relates to a glass break detector with a receiver which detects the vibrations which occur when a glass breaks, which is attached to a glass pane to be secured together with a downstream evaluation electronics and which cooperates with an alarm system.
  • a method and device for determining the vibrations that occur when an object, in particular a glass pane, is damaged is known from DE-OS 27 38 793. It is a glass break detector, the individual components, in particular the electronic parts, are applied to a ceramic plate. Some switching elements can be built using thick film circuit technology, as described on page 6. However, as separate components, the piezo elements have to be fitted and soldered onto the corresponding contact surfaces of the ceramic plate. Even when using monolithically integrated circuits for the evaluation electronics, these must be assembled as separate components. In addition, a cable connection is provided for the transmission of the generated alarm message.
  • a glass breakage detector constructed in this way requires a relatively large number of individual work steps during manufacture and the laying of a cable during installation.
  • a device for securing windows, doors and the like is known.
  • Electrical warning devices are attached to the points to be secured, which each have an independent power generator, a sensor and a signal-generating transmitter.
  • the alarm signals are perceived by a receiver which is followed by an alarm device.
  • the alarm signal is initially given wirelessly from the point of origin, so that no cabling of, for example, glass break detectors is required. Since the task with the subject matter described in this document is merely to achieve greater flexibility for known sensor devices, in particular with regard to the power supply, no precise information about the nature of sensors, in particular glass breakage detectors and their internal structure, can be found at this point.
  • a vibration sensor with one or more tongues that can be excited by mechanical vibrations is known from European patent application 88 106 263.2.
  • the tongues are etched from a substrate, and the devices for converting the mechanical vibrations of the tongue into electrical signals and the devices for evaluating the same are accommodated on the same substrate.
  • the vibration sensor is only described as such, and special applications are only hinted at.
  • the object of the invention is to present a glass breakage detector in miniature design, which has an extremely small footprint and can be easily installed at any point without a connection cable.
  • Fully automatic manufacturing processes should be able to be used in the production, whereby the assembly of individual components can be largely avoided.
  • the drawing shows schematically how the individual components of the glass break detector are arranged on a common substrate S.
  • the frequency sensor F can be incorporated into the substrate in such a way that it does not have to appear as an independent component.
  • the frequency sensor F is electrically connected to an evaluation device A with conductor tracks applied or etched out on the substrate S.
  • the output of the evaluation device A is connected to a transmission device SE, which transmits a corresponding signal wirelessly when the evaluation device A has detected the typical vibrations that occur in the event of a glass breakage using the frequency sensor F.
  • the substrate S consists of silicon, the tongue Z of the frequency sensor F located in an opening O being produced by etching.
  • the opening O can either be designed as a depression or as an opening in the thin substrate sheet.
  • the tongue Z is provided with an electrically conductive layer S1 and the fixed part at the level of the tongue Z with a further electrically conductive layer S2. Both layers S1 and S2 form the electrodes of a capacitor and are over
  • Lines L are electrically connected to the evaluation device A.
  • the second layer S2 does not necessarily have to be applied opposite the end of the tongue Z, it can also be applied next to the tongue Z or below or above it.
  • the tongue Z can also be provided with a piezoactive layer which is connected to the evaluation device A by lines.
  • the layers and the lines L can be applied by vapor deposition.
  • the evaluation device A is incorporated as an integrated circuit in the substrate S made of silicon, and amplifiers, memories, etc. may be present.
  • the transmission device SE is also integrated in the substrate in the same way.
  • the connections for the power supply and the signal inputs and the outputs can be designed for connecting gold wires by means of bonds, which lead to the electrical connections of the integrated circuits.
  • the opening O and the tongue Z can be produced in a series of process steps, which are followed by a series of further process steps for producing the layers S and lines L. Subsequently, the evaluation circuit A and the transmission device SE are then produced on the substrate S as integrated circuits in the substrate S.
  • the evaluation device A and the transmission device SE do not necessarily have to be arranged in the same plane and on the same side of the substrate S, rather it is also conceivable for the layers S and the lines L on one side of the substrate and on the other side of the Apply the evaluation device A or the transmission device SE to the substrate S, the lines L correspondingly being led from one side to the other side of the surfaces of the substrate S.
  • the substrate S which is used for the production of the evaluation devices designed as integrated circuits device A, or the transmitter SE is suitable, has unfavorable properties with respect to the vibration behavior of the tongue Z, or that the manufacture of the tongue Z causes great difficulties for manufacturing reasons, it is also conceivable to divide the substrate S functionally, two substrates with different physical properties are used.
  • One substrate favors the production of the tongue Z using micromechanical etching techniques and / or its vibration behavior, while the other substrate is suitable for producing integrated circuits by means of microelectronic process steps.
  • the frequency sensor F the tongue shape of which can have different geometries, can be designed for a specific frequency or for a frequency range, in the latter case there being a plurality of tongues of different lengths. By comparing the desired frequency spectrum, there is the possibility of being able to react frequency-selectively to selected vibrations.
  • the frequency sensor F thus works in such a way that the typical broken glass noises are detected by excitation of the micromechanically produced tongue structures and / or converted into electrical signals via piezoelectric conversion. These electrical signals then arrive at an evaluation device A, where they are checked for their amplitudes and buffered when activated. As a result, the transmitting device SE is controlled and gives an alarm signal to a receiving device, which can be done on the basis of radio waves (microsender), infrared sources (IR diode) or ultrasound. Appropriate signal coding can ensure that signaling devices respond selectively.
  • a piezo film P is additionally placed on the substrate underside applied, which is then glued to the glass pane to be monitored. Monitoring signals are coupled into the glass pane via this piezo film, so that an alarm can be triggered when the receiving frequencies change. In such a case, as described above, a wireless alarm signal is emitted by the transmitter SE.
  • the piezo film mentioned is a thermoplastic (PVDF-polyvinylidene fluoride), to which a piezoelectric behavior is imparted by mechanical / electrical pretreatment.
  • a space is also provided on the substrate S for the power supply SV, from where the corresponding conductor tracks for feeding the individual parts of the glass break detector lead to the individual connection points.
  • Contact elements can be located here so that mono button cells or miniature batteries can be attached. At this point it is also possible to connect solar generators which are applied to the outer surface of a housing (not shown) or to the substrate S in a housing which is then translucent.
  • the alarm signal emitted by the transmitter device SE of the glass break detector can be received by any nearby telecommunication terminal which has a suitable receiver. It can be a telephone set FA, which is then automatically activated so that an alarm message can be issued. When a glass break alarm message is received, a telephone number stored in the telephone set FA can be dialed, a telephone connection being set up in a known manner. At the point answering the call, special measures can then be used to determine from where the
  • a receiving device in a detector M which is connected to a line of a hazard detection system.
  • This can be an already existing detector, for example a fire detector, which is activated by the transmitting device SE. The alarm and the determination of the location of the detector are then taken over by the relevant alarm system.
  • each individual glass breakage detector acts on a predetermined receiving device in which different frequencies and / or different codes are used when transmitting the alarm signal.
  • a predetermined receiving device in which different frequencies and / or different codes are used when transmitting the alarm signal.
  • several individually attached glass break detectors act together on the receiving device of a telephone set FA or a detector M.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
EP89114635A 1988-08-22 1989-08-08 Détecteur de bris de vitre Withdrawn EP0358942A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883828486 DE3828486A1 (de) 1988-08-22 1988-08-22 Glasbruchmelder

Publications (2)

Publication Number Publication Date
EP0358942A2 true EP0358942A2 (fr) 1990-03-21
EP0358942A3 EP0358942A3 (fr) 1990-05-02

Family

ID=6361355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114635A Withdrawn EP0358942A3 (fr) 1988-08-22 1989-08-08 Détecteur de bris de vitre

Country Status (2)

Country Link
EP (1) EP0358942A3 (fr)
DE (1) DE3828486A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295894A (en) * 1994-12-07 1996-06-12 Viper Security Ltd Shock sensor
DE29609521U1 (de) * 1996-05-29 1996-08-14 Oskar D. Biffar GmbH & Co KG, 67480 Edenkoben Überwachungsvorrichtung für einen verglasten Durchlaß
WO2000042388A1 (fr) * 1999-01-14 2000-07-20 Lockheed Martin Corporation Procede et appareil pour l'utilisation de detecteurs sensibles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217049A1 (de) * 1992-05-22 1993-11-25 Siemens Ag Passiver Oberflächenwellen-Sensor, der drahtlos abfragbar ist
NO312796B1 (no) 2000-10-26 2002-07-01 Nordan As Alarmbrikke

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611692C3 (de) * 1976-03-19 1979-03-08 Wekatronik Sicherungssysteme Gmbh, 6700 Ludwigshafen Glasbruchmelder für Ruhestrom-Alarm-Anlagen
CH594943A5 (fr) * 1976-09-09 1978-01-31 Spirig Ernst
DE8001858U1 (de) * 1980-01-24 1980-04-24 Fritz Fuss Kg, 7470 Albstadt Glasbruchsensor
DE3243161A1 (de) * 1982-11-23 1984-05-24 Flachglas AG, 8510 Fürth Vorrichtung zum sichern von fenstern, tueren oder dergleichen
CH661812A5 (en) * 1983-10-07 1987-08-14 Fritz Leibundgut Ag Device for monitoring a pane of glass and for generating an audible signal if the pane of glass breaks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295894A (en) * 1994-12-07 1996-06-12 Viper Security Ltd Shock sensor
DE29609521U1 (de) * 1996-05-29 1996-08-14 Oskar D. Biffar GmbH & Co KG, 67480 Edenkoben Überwachungsvorrichtung für einen verglasten Durchlaß
WO2000042388A1 (fr) * 1999-01-14 2000-07-20 Lockheed Martin Corporation Procede et appareil pour l'utilisation de detecteurs sensibles
US6561040B1 (en) 1999-01-14 2003-05-13 Lockheed Martin Corporation Method and apparatus for detecting environmental conditions utilizing micro-electrical mechanical devices

Also Published As

Publication number Publication date
EP0358942A3 (fr) 1990-05-02
DE3828486A1 (de) 1990-03-08

Similar Documents

Publication Publication Date Title
DE19521712B4 (de) Vorrichtung zum Erfassen einer physikalischen Größe
DE69615416T2 (de) Hybridvorrichtung mit oberflächigen kontakten und erzeugung von akustischen signalen und verfahren zur ihrer herstellung
EP1174745B1 (fr) Module optoélectronique montable en surface
WO2007054071A1 (fr) Microphone a systeme mecanique microelectrique (mems), procede de production correspondant et procede de montage approprie
EP1472727A2 (fr) Composant semi-conducteur presentant une surface de capteur ou d'actionneur et procede pour le produire
EP0400175A1 (fr) Elément optique fixable sur une surface
EP1186035A1 (fr) Composant electronique a structures de contact souples et procede de fabrication d'un tel composant
DE2738793A1 (de) Verfahren und vorrichtung zum feststellen der bei beschaedigung eines objektes, insbesondere einer glasscheibe, auftretenden schwingungen
DE102009000379A1 (de) Ultraschalltransducer für einen Näherungssensor
EP0712161B1 (fr) Elément semi-conducteur pour une transmission optique de données bidirectionnelle en espace libre
EP0358942A2 (fr) Détecteur de bris de vitre
EP0712005A2 (fr) Capteur d'accélération piézo-électrique
DE69213778T2 (de) Verfahren zur Herstellung eines opto-elektronischen Bauteils
DE10154906A1 (de) Optokoppler
DE102007057492A1 (de) Mikroelektromechanisches System
DE2435910C2 (de) Piezoelektrischer Wandler
WO2019076900A1 (fr) Elément semi-conducteur
DE19941126A1 (de) Verfahren und Einrichtung zum Schutz eines Audiosystems in einem Fahrzeug
DE102005006861B4 (de) Sensorelement mit Leiterstruktur und elektronischem Bauelement, Messsystem mit einem entsprechenden Sensorelement und Verfahren zum Betreiben desselben
DE2254540C3 (de) Schaltungsanordnung für einen Schwingungsmelder für Ruhestrom-Alarm-Anlagen
DE10359217A1 (de) Elektrische Durchkontaktierung von HL-Chips
DE102020122812B4 (de) Photoakustische Sensoren und zugehörige Herstellungsverfahren
EP0465878A2 (fr) Transducteur ultraserrure à piezocéramique
DE4402166A1 (de) Endstellenmodul für bidirektionale optische Signalübertragung und Verfahren zu dessen Herstellung
EP0334988A2 (fr) Détecteur de vibrations

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL

18D Application deemed to be withdrawn

Effective date: 19901103