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AU4605979A - Four wire multi-satellite intrusion alarm with multiplex annunciation - Google Patents

Four wire multi-satellite intrusion alarm with multiplex annunciation

Info

Publication number
AU4605979A
AU4605979A AU46059/79A AU4605979A AU4605979A AU 4605979 A AU4605979 A AU 4605979A AU 46059/79 A AU46059/79 A AU 46059/79A AU 4605979 A AU4605979 A AU 4605979A AU 4605979 A AU4605979 A AU 4605979A
Authority
AU
Australia
Prior art keywords
annunciation
multiplex
satellite
intrusion alarm
wire multi
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.)
Abandoned
Application number
AU46059/79A
Inventor
Peter Humphries
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.)
Contronic Controls Ltd
Original Assignee
Contronic Controls 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 Contronic Controls Ltd filed Critical Contronic Controls Ltd
Publication of AU4605979A publication Critical patent/AU4605979A/en
Abandoned 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
    • 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
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
AU46059/79A 1978-04-17 1979-04-12 Four wire multi-satellite intrusion alarm with multiplex annunciation Abandoned AU4605979A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA301269 1978-04-17
CA301,269A CA1106464A (en) 1978-04-17 1978-04-17 Four wire multi-satellite intrusion alarm with multiplex annunciation

Publications (1)

Publication Number Publication Date
AU4605979A true AU4605979A (en) 1979-10-25

Family

ID=4111259

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46059/79A Abandoned AU4605979A (en) 1978-04-17 1979-04-12 Four wire multi-satellite intrusion alarm with multiplex annunciation

Country Status (4)

Country Link
AU (1) AU4605979A (en)
CA (1) CA1106464A (en)
DE (1) DE2914910A1 (en)
GB (1) GB2019072B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173618B (en) * 1985-04-12 1988-09-14 Emi Ltd Alarm monitoring installation
EP1329861B1 (en) 2002-01-16 2006-04-19 Leeds Electronic Eng. Ltd. Burglar alarm system having reduced wiring

Also Published As

Publication number Publication date
DE2914910A1 (en) 1979-10-25
CA1106464A (en) 1981-08-04
GB2019072B (en) 1982-04-28
GB2019072A (en) 1979-10-24

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