EP0349565B1 - Dispositif d'alarme place de preference dans une structure de fenetre - Google Patents

Dispositif d'alarme place de preference dans une structure de fenetre Download PDF

Info

Publication number
EP0349565B1
EP0349565B1 EP19880902594 EP88902594A EP0349565B1 EP 0349565 B1 EP0349565 B1 EP 0349565B1 EP 19880902594 EP19880902594 EP 19880902594 EP 88902594 A EP88902594 A EP 88902594A EP 0349565 B1 EP0349565 B1 EP 0349565B1
Authority
EP
European Patent Office
Prior art keywords
pane
transmitter
glass
receiver
alarm
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.)
Expired - Lifetime
Application number
EP19880902594
Other languages
German (de)
English (en)
Other versions
EP0349565A1 (fr
Inventor
Lars Eriksson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88902594T priority Critical patent/ATE95929T1/de
Publication of EP0349565A1 publication Critical patent/EP0349565A1/fr
Application granted granted Critical
Publication of EP0349565B1 publication Critical patent/EP0349565B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/04—Mechanical actuation by breaking of glass

Definitions

  • the present invention relates to an alarm apparatus, preferably in a window structure including at least one glass pane.
  • Electronic sensors also often give false alarms and can be got past. These can often only be used on single panes of glass of the float glass type, or on hardened glass.
  • Silk screen printed circuits made at the edge of a hardened glass pane and hidden in the rebate can also be used as means for giving an alarm. In this case there are methods of getting past the alarm means without the hardened glass granulating, thus not setting off the alarm since the silk screen circuit is not broken. In addition, this method does not always work on laminated glass.
  • Active systems based on propagating a known ultrasonic wave in the glass, such as described in DE-A-2541764, may be inadventently triggered by a change in the surface impedance of the glass, for instance by touching or washing the glass surface. Signal processing techniques may be used to overcome this problem, but the system becomes less sensitive.
  • One object of the present invention is to achieve an alarm function which is not triggered without proper cause and which cannot be forced by some penetration method without the alarm being triggered, while at the same time the alarm also functions on laminated multilayer structures. It is important that the alarm function is combined with a glass structure which tales a long time to force. When the alarm is triggered at the beginning of the break-in on the first attack attempt, much time and work must pass before the object comes accessible. This can usually only be achieved with multilaminated structures, and so far there has not been any satisfactory alarm apparatus for such structures. In accordance with the invention it is possible to create a solution to the above mentioned problems with the aid of ultrasonics. The distinguishing features of the present invention are apparent from the accompanying claims.
  • the risk of false alarm is minimum in the cases where the ultrasound is transmitted and registered in the glass pane in a multipane structure where the pane is inwards in the room or premises which is to be protected. If a laminated multipane structure is used, the risk of false alarm is even less, since the laminations can isolate the ultrasound solely to the inmost glass pane, simultaneously as each crack, hole or the like in the area of glass directly triggers the alarm. Naturally, the ultrasound can be used on other glass but a deteriorated function is then obtained.
  • a window structure is illustrated on the drawing, and includes three glass panes 1-3, which are kept together by two laminate layers 4,5.
  • a transmitter 6 of the ultrasonics type is mounted at a first place, preferably at the inner glass pane 1, i.e. on the inside 10 of the window structure, and so that it is bedded into the laminate 4 contiguous with the inner glass pane 1, the transmitter 6 preferably engaging directly against the actual surface of the glass pane 1 with one of its surfaces.
  • a receiver 7 of the ultrasound sent in the glass pane 1 is mounted in an other place against the glass pane 1 for registering impulses received from this pane.
  • An alarm unillustrated on the drawing is connected to the receiver 7 via connection cables 9, and the transmitter 6 is in turn connected via connection cables 8 to an unillustrated, suitable source of energy.
  • the window structure is conventionally mounted in a rebate 11.
  • the receiver 7 can also be placed in the laminate 4 contiguous to the inner glass pane 1 at a distance from the transmitter 6, and then suitably in an area of the glass pane 1 which is in the rebate 11.
  • the transmitter 6 can send an ultrasonic wave with a secret pulsation so that it cannot be got past and the transmitter can be of the Pico crystal type.
  • the transmitter 6 is suitably placed such that only one pane is subjected to the ultrasonic wave, if a multipane laminated window structure is used. If a single pane is used the risk of false alarm increases.
  • the placing of the receiver 7 on the pane 1 should be made so that the best possible registration of the ultrasonic wave sent in the glass pane 1 is achieved, and thus the receiver should be at a suitable distance from the transmitter 6.
  • the nature, size, thickness, resistance and impedance etc of the glass enables the ultrasonic wave, which is sent from the transmitter 6, to be received in the receiver 17 in a certain way. It is of course also possible to use two or more transmitters 6, as well as two or more receivers 7 on optional glass panes, in the cases where this is necessary.
  • the glass pane is damaged in any way as a result of making holes in it, breaking it etc, there is a registration in the receiver 7 that an alteration has taken place in the received impulses, e.g. in the form of frequency increase or frequency decrease.
  • the electronics controlling processes in the transmitter 6 and the receiver 7 can include a time factor, so that changes which take place in the impedance of the pane due to exterior action have a longer time than what intentional damage takes in times, thus reducing the risk of false alarm.
  • the described system functions best together with other panes and plastics layers in a laminated packet. In such a case the transmitter 6 is preferably fixed tightly against the inner pane 1 for sending the ultrasonic wave in the best way through the pane.
  • the laminate layer 4 also beds in the transmitter crystal so that the ultrasonic wave can penetrate into the outer panes 2 and 3 to the minimum extent. In this way the risk of false alarm is limited to a minimum, since exterior damaging action is not capable of affecting the impedance it, the innermost pane 1.
  • the system can be compared with a swimming pool where a transmitter makes waves in the water. The waves are deflected against walls, the bottom, corners etc and create a certain wave state depending on the resistance in the water, walls etc, which can be regarded as the impedance of the pool. If an object is placed in the water, the entire wave movement pattern is changed, which is registered by the receiver or receivers. The change triggers the alarm. If the pool leaks over to an other pool, via a channel, the change can act on the inner basin so that an alarm is triggered.
  • the electronics can remedy this phenomenon by adjusting the time factor upwards or downwards.
  • the outmost pane 3 does not actuate the alarm if a hand is laid on it, as is the case when a single glass pane is used, and thus a false alarm is practically completely excluded.
  • Each crack, hole or the like in the glass packet does trigger the alarm, however.
  • the electronics can also be combined with other sensing patterns than ultrasonics for further improving the function of the alarm.
  • a transmitter 6 or a receiver 7 can also be placed on the edge or short side of the pane 1 or the panes 2, 3.
  • the ultrasonics used can of course be replaced by impulses of some other kind, which can be transmitted and received by the intermediary of at least one glass pane included in a window structure, or by a similar sheet-like element.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

Un dispositif d'alarme, placé de préférence dans une structure de fenêtre et comportant au moins une vitre (1) ou un élément similaire en forme de feuille, comprend au moins un émetteur (6) d'impulsions, telles que des ultrasons, qui est monté à un premier endroit sur la vitre (1) de façon à pouvoir être soumis auxdites impulsions et au moins un récepteur (7) destiné à recevoir les impulsions émises dans la vitre (1) et monté à un autre endroit sur la vitre pour enregistrer les impulsions reçues en provenance de la vitre, une alarme connectée au récepteur (7) étant déclenchable lorsque les impulsions reçues en provenance de la vitre (1) changent, par exemple lorsqu'on casse la vitre (1).

Claims (3)

  1. Dispositif d'alarme, de préférence dans une structure de fenêtre, comportant au moins un émetteur (6) qui envoie des impulsions, telles que ces ultrasons, et est monté en un premier emplacement sur au moins un panneau de vitre ou élément similaire en feuille (1-3) dans une structure de fenêtre, de telle manière que le panneau puisse être soumis aux impulsions, et au moins un récepteur (7) des impulsions émises dans le panneau de verre à partir de l'émetteur (6), ce récepteur étant monté en un autre emplacement sur le panneau, à distance de l'émetteur (6),pour enregistrer les impulsions reçues du panneau, une alarme reliée au récepteur (7) et pouvant être déclenchée lorsque les impulsions ont des valeurs correspondant à celles qui se produisent lorsque par exemple le panneau est cassé, caractérisé en ce que le panneau comporte une vitre (1-3) appartenant à un ensemble lamellaire (1-5), et en ce que l'émetteur (6) et le récepteur (7) sont assujettis au bord d'un panneau de verre intermédiaire (2), ou sur une face des panneaux (1-3) en regard d'un panneau (1-3) appartenant à l'ensemble (1-5).
  2. Dispositif d'alarme tel que revendiqué dans la revendication 1, caractérisé en ce que le panneau de verre est le panneau (1) le plus intérieur dans l'ensemble lamellaire (1-5).
  3. Dispositif d'alarme tel que revendiqué dans la revendication 1 ou 2, caractérisé en ce qu'à la fois l'émetteur (6) et le récepteur (7) des impulsions sont montés dans une zone d'un panneau compris dans l'ensemble (1-5) qui est située dans une feuillure (11) portant une structure de fenêtre.
EP19880902594 1987-03-06 1988-03-07 Dispositif d'alarme place de preference dans une structure de fenetre Expired - Lifetime EP0349565B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88902594T ATE95929T1 (de) 1987-03-06 1988-03-07 Alarmanordnung, vorzugsweise in einer fensterstruktur.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8700952A SE456951B (sv) 1987-03-06 1987-03-06 Larmanordning foeretraedesvis vid en foensterkonstruktion och innefattande minst en saendare av ultraljud
SE8700952 1987-03-06

Publications (2)

Publication Number Publication Date
EP0349565A1 EP0349565A1 (fr) 1990-01-10
EP0349565B1 true EP0349565B1 (fr) 1993-10-13

Family

ID=20367784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880902594 Expired - Lifetime EP0349565B1 (fr) 1987-03-06 1988-03-07 Dispositif d'alarme place de preference dans une structure de fenetre

Country Status (6)

Country Link
EP (1) EP0349565B1 (fr)
AU (1) AU1397888A (fr)
DE (1) DE3884943T2 (fr)
FI (1) FI98964C (fr)
SE (1) SE456951B (fr)
WO (1) WO1988006774A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1002922A3 (fr) * 1998-11-18 2002-03-06 Delphi Technologies, Inc. Dispositif anti-pincement pour lève-vitre à moteur dans des véhicules automobiles
CN108564742B (zh) * 2018-06-13 2020-07-03 东莞市信源建材科技有限公司 一种多功能防盗报警玻璃

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539928A (en) * 1975-05-29 1979-02-07 Matsushita Electric Ind Co Ltd Apparatus for detecting the breakage of a glass sheet
DE2541764A1 (de) * 1975-09-19 1977-03-24 Philips Patentverwaltung Ueberwachungsanordnung fuer beschaedigungen an groesseren scheiben mit einer ultraschallvorrichtung
JPS52116274A (en) * 1976-03-25 1977-09-29 Matsushita Electric Ind Co Ltd Glass plate breakage inspecting apparatus
DE2938968A1 (de) * 1979-09-26 1981-07-02 Siemens AG, 1000 Berlin und 8000 München Alarmsystem fuer den schutz von glasflaechen, insbesondere schaufensterscheiben
DE3027283A1 (de) * 1980-07-18 1982-02-11 ABM Elektronik GmbH, 8000 München Verfahren und vorrichtung zum anzeigen von glasscheibenbruch
DE3227876A1 (de) * 1981-11-20 1983-06-01 Fa. Aug. Winkhaus, 4404 Telgte Alarmanlage zur sicherung eines durchgangs
ATE38573T1 (de) * 1984-04-30 1988-11-15 Fuss Fritz Gmbh & Co Glasbruchsensor.

Also Published As

Publication number Publication date
SE456951B (sv) 1988-11-14
DE3884943T2 (de) 1994-05-11
SE8700952D0 (sv) 1987-03-06
EP0349565A1 (fr) 1990-01-10
FI894188A0 (fi) 1989-09-05
SE8700952L (sv) 1988-09-07
WO1988006774A1 (fr) 1988-09-07
DE3884943D1 (de) 1993-11-18
FI98964B (fi) 1997-05-30
AU1397888A (en) 1988-09-26
FI98964C (fi) 1997-09-10

Similar Documents

Publication Publication Date Title
US4209776A (en) Vibratory and ultrasonic fence intruder detection system
US4602357A (en) Coded acoustic alarm transmitter/receiver system
EP0866432B1 (fr) Système de sécurité avec liaison sonore et communication bidirectionelle
GB2097225A (en) Surveillance system for preventing pilferage
US4459689A (en) Multiple zone object detection system
EP2019379B1 (fr) Contact optique haute sécurité
US3781859A (en) Controlled wave pattern ultrasonic burglar alarm
EP0636569B1 (fr) Clavier à bouton-poussoirs pour un ascenseur
JPS6016000B2 (ja) 音響伝導媒体の監視方法
US4609909A (en) Multimode perimeter intrusion detection system
CA1256976A (fr) Systeme autocorrecteur detecteur d'effraction
EP0349565B1 (fr) Dispositif d'alarme place de preference dans une structure de fenetre
WO1982000910A1 (fr) Systeme ultrasonique de communication et de securite
US3721972A (en) Ultrasonic burglar alarm system
US20030184438A1 (en) Sensor systems
EP0486018B1 (fr) Détecteur d'intrus
US3825919A (en) Laminated security window
DK168255B1 (da) Alarmanordning, fortrinsvis ved en vindueskonstruktion
SE424116B (sv) Anleggning for registrering av foremals passage genom ett forutbestemt omrade
US5481246A (en) Alarm device having a pick-up formed as a condenser with piezoelectric dielectric
JP2983239B2 (ja) 施錠確認装置
US4172253A (en) Controlled wave pattern ultrasonic burglar alarm
JP4413073B2 (ja) 電気回路の異常検出装置
EP0026383A1 (fr) Système d'alarme pour la protection de surfaces vitrées, en particulier des vitres d'étalage
IL154347A (en) Security system, particularly for property surveillance and a sensor

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

17P Request for examination filed

Effective date: 19890830

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 19921005

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19931013

Ref country code: SE

Effective date: 19931013

REF Corresponds to:

Ref document number: 95929

Country of ref document: AT

Date of ref document: 19931015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3884943

Country of ref document: DE

Date of ref document: 19931118

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950208

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950419

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19960331

BERE Be: lapsed

Owner name: ERIKSSON LARS

Effective date: 19960331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960307

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980330

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980331

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990324

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990527

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990630

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19991001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010103