GB2023318A - Electronic analysers and vibration detector systems incorporating the same - Google Patents

Electronic analysers and vibration detector systems incorporating the same

Info

Publication number
GB2023318A
GB2023318A GB7924171A GB7924171A GB2023318A GB 2023318 A GB2023318 A GB 2023318A GB 7924171 A GB7924171 A GB 7924171A GB 7924171 A GB7924171 A GB 7924171A GB 2023318 A GB2023318 A GB 2023318A
Authority
GB
United Kingdom
Prior art keywords
electronic
analysers
same
vibration detector
systems incorporating
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Withdrawn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
GB7924171A
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.)
SESCO Ltd
Original Assignee
SESCO 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 SESCO Ltd filed Critical SESCO Ltd
Priority to GB7924171A priority Critical patent/GB2023318A/en
Publication of GB2023318A publication Critical patent/GB2023318A/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Withdrawn legal-status Critical Current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
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The detector system is intended to be used as a security system for intruder detection. The system includes a vibration sensor, e.g. switch (3), and an electronic analyser including circuitry (6), (7), (8) operable to activate an alarm (9) when the sensor detects relatively low or high frequency vibrations above a preset level, indicative of structural attack by a potential intruder. <IMAGE>
GB7924171A 1978-04-11 1979-07-11 Electronic analysers and vibration detector systems incorporating the same Withdrawn GB2023318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7924171A GB2023318A (en) 1978-04-11 1979-07-11 Electronic analysers and vibration detector systems incorporating the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1421478 1978-04-11
GB7924171A GB2023318A (en) 1978-04-11 1979-07-11 Electronic analysers and vibration detector systems incorporating the same

Publications (1)

Publication Number Publication Date
GB2023318A true GB2023318A (en) 1979-12-28

Family

ID=26250397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7924171A Withdrawn GB2023318A (en) 1978-04-11 1979-07-11 Electronic analysers and vibration detector systems incorporating the same

Country Status (1)

Country Link
GB (1) GB2023318A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528487A1 (en) * 1982-06-11 1983-12-16 Securiton Ag DEVICE FOR THE MONITORING OF ARMORED PREMISES, ESPECIALLY STRONG ROOMS AND SAFE
WO1987003985A1 (en) * 1985-12-17 1987-07-02 Weyrad (Electronics) Limited Improvements relating to alarm systems
GB2191324A (en) * 1986-05-29 1987-12-09 Cadin Electronics Security alarm system
GB2221990A (en) * 1988-08-17 1990-02-21 Shorrock Ltd Vibration-sensitive intrusion detection system
US6069560A (en) * 1995-08-30 2000-05-30 Covial Device Ab Detector for detecting vibrations
WO2002035490A1 (en) * 2000-10-26 2002-05-02 Nordan As Alarm chip and use of the alarm chip

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528487A1 (en) * 1982-06-11 1983-12-16 Securiton Ag DEVICE FOR THE MONITORING OF ARMORED PREMISES, ESPECIALLY STRONG ROOMS AND SAFE
WO1987003985A1 (en) * 1985-12-17 1987-07-02 Weyrad (Electronics) Limited Improvements relating to alarm systems
EP0234116A1 (en) * 1985-12-17 1987-09-02 Weyrad (Electronics) Ltd Alarm system
US4912455A (en) * 1985-12-17 1990-03-27 Weyrad (Electronics) Limited Alarm systems
GB2191324A (en) * 1986-05-29 1987-12-09 Cadin Electronics Security alarm system
GB2191324B (en) * 1986-05-29 1990-05-23 Cadin Electronics Security alarm systems
GB2221990A (en) * 1988-08-17 1990-02-21 Shorrock Ltd Vibration-sensitive intrusion detection system
GB2221990B (en) * 1988-08-17 1992-04-08 Shorrock Ltd Intrusion detection system
US6069560A (en) * 1995-08-30 2000-05-30 Covial Device Ab Detector for detecting vibrations
WO2002035490A1 (en) * 2000-10-26 2002-05-02 Nordan As Alarm chip and use of the alarm chip
US6989746B2 (en) 2000-10-26 2006-01-24 Nordan As Alarm chip and use of the alarm chip

Similar Documents

Publication Publication Date Title
CA2201615A1 (en) Exposure indicator with alarm signal
KR920003174A (en) Interrupt controller
GB2023318A (en) Electronic analysers and vibration detector systems incorporating the same
DE3267780D1 (en) Surveillance and alarm method and device
IT1198619B (en) DEVICE FOR SURVEILLANCE OF ENVIRONMENTS IN PARTICULAR SAFES AND SECURITY ROOMS, AND TO GENERATE AN ALARM SIGNAL IF AN ATTEMPT ATTEMPT IS UNDERTAKEN
JPS5377199A (en) Fire detector
JPS5750021A (en) Periodic signal detector
JPS5353918A (en) Detecting method for vertical synchronizing signal and its circuit
JPS5543422A (en) Electronic timer
LAUE Passive intrusion detection system[Patent]
JPS5436753A (en) Detection of foreign substance in sealed body
IE40219L (en) Fire-sensing system
JPS5394104A (en) Circuit monitor system
JPS5315171A (en) Signal level detection circuit
JPS5327012A (en) Vibration sense level detecting system
JPS546436A (en) Operation detector of electronic computer
JPS5315711A (en) Picture signal processing circuit
JPS641348A (en) Transmitter-receiver
JPS5420699A (en) Ultrasonic alert device
JPS53106599A (en) Ultrasonic alarm device
JPS5329698A (en) Alarm device sliding door intrustion
JPS5417657A (en) Frequency discrimanator circuit
JPS5483884A (en) Surface defect detector of wire
JPS53116872A (en) Vibration detecting system
JPS5370475A (en) Vibration detector

Legal Events

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