EP1098282A3 - Sensor systems - Google Patents

Sensor systems Download PDF

Info

Publication number
EP1098282A3
EP1098282A3 EP00309852A EP00309852A EP1098282A3 EP 1098282 A3 EP1098282 A3 EP 1098282A3 EP 00309852 A EP00309852 A EP 00309852A EP 00309852 A EP00309852 A EP 00309852A EP 1098282 A3 EP1098282 A3 EP 1098282A3
Authority
EP
European Patent Office
Prior art keywords
item
sensor systems
detecting
movement
sensor system
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Withdrawn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
EP00309852A
Other languages
German (de)
French (fr)
Other versions
EP1098282A2 (en
Inventor
Philip Elphee Williams
Peter John Jones
Peter Jonathan Hutcheson
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.)
Dc Drives (patents) Ltd
Staplethorne Ltd
Original Assignee
Dc Drives (patents) Ltd
Staplethorne Ltd
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 Dc Drives (patents) Ltd, Staplethorne Ltd filed Critical Dc Drives (patents) Ltd
Publication of EP1098282A2 publication Critical patent/EP1098282A2/en
Publication of EP1098282A3 publication Critical patent/EP1098282A3/en
Withdrawn legal-status Critical Current

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
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

A sensor system is provided for use in detecting movement of an item, e.g. a picture 16, suspended from a wall or other substantially vertical structure, or for detecting movement of an item displayed or stored on a horizontal or inclined surface, the sensor system including a piezoceramic element (22) which is mounted on a metallic disc (23) which, in use, is located between the item (16) and the structure or surface, and means for detecting the generation of an output by the piezoceramic element (22) as a result of deflection of the disc (23) in either of two opposite directions as a result of movement of the item (16).
EP00309852A 1999-11-06 2000-11-06 Sensor systems Withdrawn EP1098282A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9926208.1A GB9926208D0 (en) 1999-11-06 1999-11-06 Sensor systems
GB9926208 1999-11-06

Publications (2)

Publication Number Publication Date
EP1098282A2 EP1098282A2 (en) 2001-05-09
EP1098282A3 true EP1098282A3 (en) 2002-06-19

Family

ID=10863999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00309852A Withdrawn EP1098282A3 (en) 1999-11-06 2000-11-06 Sensor systems

Country Status (2)

Country Link
EP (1) EP1098282A3 (en)
GB (2) GB9926208D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2515090A (en) 2013-06-13 2014-12-17 Xtra Sense Ltd A cabinet alarm system and method
DE202014106128U1 (en) 2014-12-17 2015-02-02 Xtra-Sense Ltd. Cabinet Alarm System

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241811A (en) * 1989-12-02 1991-09-11 Weyrad Electronics Ltd Alarm systems
US5258743A (en) * 1991-07-29 1993-11-02 Uniplex Corporation Piezoelectric motion sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481434A (en) * 1968-07-03 1969-11-15 Cerberus Ag Werk Fuer Elektron Electrical device for protecting movable objects suspended on a wall or ceiling or placed on a base or in a display cabinet against theft or damage
GB2197516B (en) * 1986-11-15 1990-10-03 John Bryan Clough Security device
RU2006948C1 (en) * 1991-02-15 1994-01-30 Рапохин Евгений Иванович Alarm transmitter
US5801475A (en) * 1993-09-30 1998-09-01 Mitsuteru Kimura Piezo-electricity generation device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241811A (en) * 1989-12-02 1991-09-11 Weyrad Electronics Ltd Alarm systems
US5258743A (en) * 1991-07-29 1993-11-02 Uniplex Corporation Piezoelectric motion sensor

Also Published As

Publication number Publication date
GB0026977D0 (en) 2000-12-20
GB2360119A (en) 2001-09-12
EP1098282A2 (en) 2001-05-09
GB9926208D0 (en) 2000-01-12
GB2360119B (en) 2004-03-24

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