NL7701779A - METHOD AND EQUIPMENT FOR MONITORING A SPACE. - Google Patents

METHOD AND EQUIPMENT FOR MONITORING A SPACE.

Info

Publication number
NL7701779A
NL7701779A NL7701779A NL7701779A NL7701779A NL 7701779 A NL7701779 A NL 7701779A NL 7701779 A NL7701779 A NL 7701779A NL 7701779 A NL7701779 A NL 7701779A NL 7701779 A NL7701779 A NL 7701779A
Authority
NL
Netherlands
Prior art keywords
monitoring
equipment
space
Prior art date
Application number
NL7701779A
Other languages
Dutch (nl)
Original Assignee
Coprelec Sa
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 Coprelec Sa filed Critical Coprelec Sa
Publication of NL7701779A publication Critical patent/NL7701779A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • 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
    • G08B13/1645—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means and other detection means, e.g. microwave or infrared radiation
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
NL7701779A 1976-02-19 1977-02-18 METHOD AND EQUIPMENT FOR MONITORING A SPACE. NL7701779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7604545A FR2346787A1 (en) 1976-02-19 1976-02-19 Enclosed space surveillance system - monitors signals representative of two parameters, triggering alarm when signals exceed step value

Publications (1)

Publication Number Publication Date
NL7701779A true NL7701779A (en) 1977-08-23

Family

ID=9169311

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7701779A NL7701779A (en) 1976-02-19 1977-02-18 METHOD AND EQUIPMENT FOR MONITORING A SPACE.

Country Status (6)

Country Link
JP (1) JPS52101999A (en)
BE (1) BE851331A (en)
DE (1) DE2707181A1 (en)
FR (1) FR2346787A1 (en)
IT (1) IT1074867B (en)
NL (1) NL7701779A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410884A (en) * 1977-08-18 1983-10-18 Firma Aug. Winkhaus Alarm system
FR2486277A1 (en) * 1980-07-04 1982-01-08 Cristec Ind Intruder alarm system using radio link - detects phase offset of received signals to prevent alarm operation due to parasitic vibrations
EP0126703A1 (en) * 1983-05-19 1984-11-28 Yechiel Spector Detection apparatus
US4636774A (en) * 1983-11-08 1987-01-13 American District Telegraph Company Variable sensitivity motion detector
FR2910161B1 (en) * 2006-12-15 2009-01-30 Thales Sa GONIOMETRIC SYSTEM OF MINI SENSORS DOPPLER IN NETWORKS FOR THE MONITORING OF PERIMETERS

Also Published As

Publication number Publication date
FR2346787B1 (en) 1978-08-18
IT1074867B (en) 1985-04-20
DE2707181A1 (en) 1977-09-01
BE851331A (en) 1977-08-11
JPS52101999A (en) 1977-08-26
FR2346787A1 (en) 1977-10-28

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Legal Events

Date Code Title Description
BV The patent application has lapsed
BV The patent application has lapsed