ZA832280B - Intrusion detector - Google Patents

Intrusion detector

Info

Publication number
ZA832280B
ZA832280B ZA832280A ZA832280A ZA832280B ZA 832280 B ZA832280 B ZA 832280B ZA 832280 A ZA832280 A ZA 832280A ZA 832280 A ZA832280 A ZA 832280A ZA 832280 B ZA832280 B ZA 832280B
Authority
ZA
South Africa
Prior art keywords
intrusion detector
intrusion
detector
Prior art date
Application number
ZA832280A
Other languages
English (en)
Inventor
Ilan Haran
Dan Haran
Original Assignee
Elsec Electronic Security Syst
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 Elsec Electronic Security Syst filed Critical Elsec Electronic Security Syst
Publication of ZA832280B publication Critical patent/ZA832280B/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
ZA832280A 1982-04-08 1983-03-30 Intrusion detector ZA832280B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/366,558 US4521768A (en) 1982-04-08 1982-04-08 Intrusion detector

Publications (1)

Publication Number Publication Date
ZA832280B true ZA832280B (en) 1983-12-28

Family

ID=23443532

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA832280A ZA832280B (en) 1982-04-08 1983-03-30 Intrusion detector

Country Status (5)

Country Link
US (1) US4521768A (fr)
FR (1) FR2525006A1 (fr)
GB (1) GB2118342A (fr)
IL (1) IL68168A0 (fr)
ZA (1) ZA832280B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665379A (en) * 1984-05-10 1987-05-12 Anes Electronics, Inc. Vehicle security system
DE3540806A1 (de) * 1985-11-16 1987-05-21 Opel Adam Ag Verfahren und vorrichtung zur fuellstandsmessung in wechselnden beschleunigungen unterworfenen behaeltern
US4751399A (en) * 1986-12-11 1988-06-14 Novitas, Inc. Automatic lighting device
GB2201819B (en) * 1987-01-22 1991-05-29 Task Force International Limit Detection systems
US4764755A (en) * 1987-07-27 1988-08-16 Detection Systems, Inc. Intruder detection system with false-alarm-minimizing circuitry
US5084697A (en) * 1989-03-01 1992-01-28 Hwang Shih Ming Error-free control circuit for alarm detectors
US5084696A (en) * 1991-01-24 1992-01-28 Aritech Corporation Signal detection system with dynamically adjustable detection threshold
US5268672A (en) * 1991-09-09 1993-12-07 Hitek-Protek Systems Incorporated Intrusion detection system incorporating deflection-sensitive coaxial cable mounted on deflectable barrier
US5365219A (en) * 1992-07-08 1994-11-15 Michael Hung Chang Conversation level warning device
FI98328C (fi) * 1993-12-07 1997-05-26 Jouni Mikael Utter Kytkinjärjestelmä
US5414263A (en) * 1994-02-24 1995-05-09 Regent Lighting Corporation Infrared detection switching circuit
US5512874A (en) * 1994-05-04 1996-04-30 T. B. Poston Security device
SE509206C2 (sv) * 1995-08-30 1998-12-14 Roland Larsson Vibrationsdetektor
US5870022A (en) * 1997-09-30 1999-02-09 Interactive Technologies, Inc. Passive infrared detection system and method with adaptive threshold and adaptive sampling
US6166633A (en) * 1999-05-21 2000-12-26 Wang; Randall Process for reducing motion-type false alarm of security alarm system with self-analyzing and self-adjusting control
US7180424B2 (en) * 2002-11-08 2007-02-20 Bio-Sense Canine security system
US7800506B2 (en) * 2005-03-17 2010-09-21 Eyal Zehavi Canine security system
AU2008224428A1 (en) * 2007-03-12 2008-09-18 Elta Systems Ltd. Method and system for detecting motorized objects
CN119339490A (zh) * 2024-10-16 2025-01-21 北京红山信息科技研究院有限公司 一种基于雷达和视频的铁路沿线侵界管理系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL266481A (fr) * 1960-06-30
US3828338A (en) * 1969-12-22 1974-08-06 T Kato Safe
US3691549A (en) * 1970-12-02 1972-09-12 Sylvania Electric Prod Signal processor
US3979740A (en) * 1973-06-11 1976-09-07 Inertia Switch Limited Monitoring system
US3831039A (en) * 1973-10-09 1974-08-20 Minnesota Mining & Mfg Signal recognition circuitry
GB1498514A (en) * 1974-03-25 1978-01-18 Cadin Electronics Electronic intrusion detection devices
AU8033275A (en) * 1974-04-23 1976-10-21 Cabili Electronics Pty. Ltd False alarm inhibitor
US3978479A (en) * 1975-05-29 1976-08-31 Westinghouse Electric Corporation Solid state security system
US4136334A (en) * 1977-06-21 1979-01-23 Digequip Security Industries, Inc. Timed alarming using logical inverters
GB1592773A (en) * 1977-10-05 1981-07-08 Chubb Alarms Ltd Alarm systems
US4386343A (en) * 1978-11-20 1983-05-31 Shiveley James T Acoustic emission intruder alarm system
GB2080592B (en) * 1980-07-03 1984-05-31 Rca Security Systems Ltd Vibration and/or impact detection system
US4365239A (en) * 1980-11-20 1982-12-21 Stellar Systems, Inc. Intrusion warning system

Also Published As

Publication number Publication date
FR2525006A1 (fr) 1983-10-14
IL68168A0 (en) 1983-06-15
GB2118342A (en) 1983-10-26
US4521768A (en) 1985-06-04
GB8308918D0 (en) 1983-05-11

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