ZA994743B - Perimeter monitoring system. - Google Patents

Perimeter monitoring system.

Info

Publication number
ZA994743B
ZA994743B ZA9904743A ZA994743A ZA994743B ZA 994743 B ZA994743 B ZA 994743B ZA 9904743 A ZA9904743 A ZA 9904743A ZA 994743 A ZA994743 A ZA 994743A ZA 994743 B ZA994743 B ZA 994743B
Authority
ZA
South Africa
Prior art keywords
monitoring system
perimeter monitoring
perimeter
monitoring
Prior art date
Application number
ZA9904743A
Other languages
English (en)
Inventor
Thomas E Berk
Original Assignee
Beamerline Llc
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 Beamerline Llc filed Critical Beamerline Llc
Publication of ZA994743B publication Critical patent/ZA994743B/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/184—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using radiation reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
ZA9904743A 1998-09-01 1999-07-23 Perimeter monitoring system. ZA994743B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/145,040 US6317043B1 (en) 1998-09-01 1998-09-01 Perimeter monitoring system

Publications (1)

Publication Number Publication Date
ZA994743B true ZA994743B (en) 2000-01-25

Family

ID=22511328

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9904743A ZA994743B (en) 1998-09-01 1999-07-23 Perimeter monitoring system.

Country Status (5)

Country Link
US (1) US6317043B1 (fr)
AU (1) AU716810B1 (fr)
CA (1) CA2280563A1 (fr)
FR (1) FR2782825B1 (fr)
ZA (1) ZA994743B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6568109B2 (en) * 1999-02-10 2003-05-27 Eddie Sanders Changeable address display
EP1236196A1 (fr) * 1999-12-07 2002-09-04 Moshe Klotz Dispositif desaxe de detection de lumiere
FR2852044B1 (fr) * 2003-03-07 2007-11-23 Firstinnov Dispositif pour securiser l'acces a une piscine
US7845948B2 (en) * 2003-11-10 2010-12-07 Ricky Dion Barnes Training method and device for teaching a trainee to remain within a safety zone
JP4418376B2 (ja) * 2005-01-26 2010-02-17 株式会社クレヴァシステムズ 侵入検知センサー
GB0701743D0 (en) * 2007-01-31 2007-09-19 Wireless Fibre Systems Ltd A system for detection of underwater objects
US20090179759A1 (en) * 2008-01-11 2009-07-16 Koury Richard H Animal deterrent system
US8508366B2 (en) * 2008-05-12 2013-08-13 Robert Bosch Gmbh Scanning security detector
CN104637216B (zh) * 2013-11-13 2017-03-15 上海理工大学 一种激光立体防侵入监控系统
US11557184B2 (en) 2018-07-09 2023-01-17 Robert D. Fisher Alarm screen with embedded wireless transmitter

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354695A (en) * 1929-02-08 1931-08-13 Heinrich Geffcken Method and means for operating contacts by means of light sensitive electric apparatus
US3623057A (en) 1969-05-14 1971-11-23 Phinizy R B Laser perimeter intrusion detection system
US3688298A (en) 1970-05-13 1972-08-29 Security Systems Inc Property protection system employing laser light
US3641549A (en) * 1970-06-25 1972-02-08 Sanders Associates Inc Electro-optical perimeter intrusion alarm
US3711846A (en) * 1971-02-08 1973-01-16 Holobeam Segment locating intrusion alarm system
DE2320094A1 (de) * 1973-04-19 1974-11-07 Lingl Anlagenbau Wechsellichtschranke
US3898639A (en) * 1972-08-24 1975-08-05 Hrand M Muncheryan Security surveillance laser system
US4004805A (en) * 1974-08-30 1977-01-25 Chen Kun Mu Electronic line monitoring system for a tennis court
US4701751A (en) 1984-11-09 1987-10-20 Sackett Robert L Pool alarm system
HU195589B (en) * 1986-09-15 1988-05-30 Peter Hakkel Portable optical system for protecting field
US4910498A (en) 1988-05-19 1990-03-20 Steve Feher Swimming pool safety alarm
US5552767A (en) * 1994-02-14 1996-09-03 Toman; John R. Assembly for, and method of, detecting and signalling when an object enters a work zone
US5508511A (en) 1994-05-24 1996-04-16 Interactive Light, Inc. Arrangement for and method of detecting an object in an area subject to environmental variations
US5559509A (en) * 1995-01-09 1996-09-24 Ogle; Terry B. Cross-walk warning light system

Also Published As

Publication number Publication date
AU716810B1 (en) 2000-03-09
US6317043B1 (en) 2001-11-13
FR2782825A1 (fr) 2000-03-03
FR2782825B1 (fr) 2003-02-07
CA2280563A1 (fr) 2000-03-01

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