SE9103386L - Glass Break Detection - Google Patents
Glass Break DetectionInfo
- Publication number
- SE9103386L SE9103386L SE9103386A SE9103386A SE9103386L SE 9103386 L SE9103386 L SE 9103386L SE 9103386 A SE9103386 A SE 9103386A SE 9103386 A SE9103386 A SE 9103386A SE 9103386 L SE9103386 L SE 9103386L
- Authority
- SE
- Sweden
- Prior art keywords
- glass
- break detection
- glass break
- pane
- alarm signal
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Burglar Alarm Systems (AREA)
Abstract
There are disclosed a method and a device for detection of the breaking of a pane of glass for delivery of an alarm signal. By means of a broad band ultrasonic sensor ultrasonic waves are detected, said waves being generated when a pane of glass is broken, an alarm signal being delivered upon receipt of ultrasonic waves within the frequency range of 50 - 110 kHz having amplitudes exceeding a predetermined threshold level.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9103386A SE9103386L (en) | 1991-11-15 | 1991-11-15 | Glass Break Detection |
PCT/SE1992/000786 WO1993010513A1 (en) | 1991-11-15 | 1992-11-13 | Glass break detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9103386A SE9103386L (en) | 1991-11-15 | 1991-11-15 | Glass Break Detection |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9103386D0 SE9103386D0 (en) | 1991-11-15 |
SE9103386L true SE9103386L (en) | 1993-05-16 |
Family
ID=20384342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9103386A SE9103386L (en) | 1991-11-15 | 1991-11-15 | Glass Break Detection |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE9103386L (en) |
WO (1) | WO1993010513A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3298318B2 (en) * | 1994-07-18 | 2002-07-02 | 株式会社デンソー | Glass break detector |
DE102015111392A1 (en) * | 2015-07-14 | 2017-01-19 | Vorwerk & Co. Interholding Gmbh | Method for operating a surface treatment device |
DE102015113035A1 (en) | 2015-08-07 | 2017-02-09 | Vorwerk & Co. Interholding Gmbh | Surface treatment device and base station |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1323451A (en) * | 1970-01-17 | 1973-07-18 | Sonicaid Ltd | Alarm systems |
US4054867A (en) * | 1971-12-10 | 1977-10-18 | Microwave And Electronic Systems Limited | Detecting damage to bulk material |
CH594943A5 (en) * | 1976-09-09 | 1978-01-31 | Spirig Ernst | |
US4134109A (en) * | 1977-05-16 | 1979-01-09 | Omni Spectra, Inc. | Alarm system responsive to the breaking of glass |
FR2539534A1 (en) * | 1983-01-17 | 1984-07-20 | Alsthom Cgee | Test arrangement for detecting the breaking of glass |
GB2171518B (en) * | 1985-02-08 | 1988-09-01 | Automated Security Holdings | Glass break detector |
DE3504552A1 (en) * | 1985-02-11 | 1986-08-14 | Wurm, Fritz, 4600 Dortmund | Alarm-triggering device and apparatus operating without installation |
DE9003065U1 (en) * | 1989-04-12 | 1990-10-25 | Siemens AG, 1000 Berlin und 8000 München | Monitoring device for monitoring the windows of a room, e.g. car interior |
DE9116653U1 (en) * | 1990-09-28 | 1993-08-12 | Siemens AG, 80333 München | Monitoring circuit for monitoring the windows of a room with ultrasound |
-
1991
- 1991-11-15 SE SE9103386A patent/SE9103386L/en not_active Application Discontinuation
-
1992
- 1992-11-13 WO PCT/SE1992/000786 patent/WO1993010513A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1993010513A1 (en) | 1993-05-27 |
SE9103386D0 (en) | 1991-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9103386-0 Effective date: 19930820 |