GB9913222D0 - Security system - Google Patents

Security system

Info

Publication number
GB9913222D0
GB9913222D0 GB9913222A GB9913222A GB9913222D0 GB 9913222 D0 GB9913222 D0 GB 9913222D0 GB 9913222 A GB9913222 A GB 9913222A GB 9913222 A GB9913222 A GB 9913222A GB 9913222 D0 GB9913222 D0 GB 9913222D0
Authority
GB
United Kingdom
Prior art keywords
security system
security
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Withdrawn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
GB9913222A
Other versions
GB2350898A (en
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.)
Valeo Management Services UK Ltd
Original Assignee
Valeo Service 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 Valeo Service Ltd filed Critical Valeo Service Ltd
Priority to GB9913222A priority Critical patent/GB2350898A/en
Publication of GB9913222D0 publication Critical patent/GB9913222D0/en
Publication of GB2350898A publication Critical patent/GB2350898A/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Withdrawn legal-status Critical Current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
    • G08B13/16—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
    • B60R25/1009—Sonic sensors; Signal treatment therefor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
GB9913222A 1999-06-07 1999-06-07 Ultrasonic intrusion detection system Withdrawn GB2350898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9913222A GB2350898A (en) 1999-06-07 1999-06-07 Ultrasonic intrusion detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9913222A GB2350898A (en) 1999-06-07 1999-06-07 Ultrasonic intrusion detection system

Publications (2)

Publication Number Publication Date
GB9913222D0 true GB9913222D0 (en) 1999-08-04
GB2350898A GB2350898A (en) 2000-12-13

Family

ID=10854885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9913222A Withdrawn GB2350898A (en) 1999-06-07 1999-06-07 Ultrasonic intrusion detection system

Country Status (1)

Country Link
GB (1) GB2350898A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004003591A1 (en) 2002-06-26 2004-01-08 It-Højskolen A method of and a system for surveillance of an environment utilising electromagnetic waves
US7088236B2 (en) 2002-06-26 2006-08-08 It University Of Copenhagen Method of and a system for surveillance of an environment utilising electromagnetic waves
WO2008120246A1 (en) * 2007-03-29 2008-10-09 Cobra Automotive Technologies S.P.A. Method and device for detection of intrusions in closed volumes, in particular for passenger compartments of vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473835A1 (en) * 1990-09-07 1992-03-11 Siemens Aktiengesellschaft Method and device for ultrasonic room monitoring
GB9206360D0 (en) * 1992-03-24 1992-05-06 Rover Group A device for and a method of surveillance of a space

Also Published As

Publication number Publication date
GB2350898A (en) 2000-12-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)