GB1511461A - Multi-zone intrusion detection system - Google Patents

Multi-zone intrusion detection system

Info

Publication number
GB1511461A
GB1511461A GB100876A GB100876A GB1511461A GB 1511461 A GB1511461 A GB 1511461A GB 100876 A GB100876 A GB 100876A GB 100876 A GB100876 A GB 100876A GB 1511461 A GB1511461 A GB 1511461A
Authority
GB
United Kingdom
Prior art keywords
zone
zones
doppler
modules
transmitting transducers
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.)
Expired
Application number
GB100876A
Other languages
English (en)
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.)
Pittway Corp
Original Assignee
Pittway Corp
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
Priority claimed from US05/542,695 external-priority patent/US3986182A/en
Application filed by Pittway Corp filed Critical Pittway Corp
Publication of GB1511461A publication Critical patent/GB1511461A/en
Expired 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
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S15/523—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB100876A 1975-01-21 1976-01-12 Multi-zone intrusion detection system Expired GB1511461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/542,695 US3986182A (en) 1974-03-27 1975-01-21 Multi-zone intrusion detection system

Publications (1)

Publication Number Publication Date
GB1511461A true GB1511461A (en) 1978-05-17

Family

ID=24164901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB100876A Expired GB1511461A (en) 1975-01-21 1976-01-12 Multi-zone intrusion detection system

Country Status (8)

Country Link
JP (1) JPS5197397A (enrdf_load_stackoverflow)
AU (1) AU502566B2 (enrdf_load_stackoverflow)
CA (1) CA1050652A (enrdf_load_stackoverflow)
DE (1) DE2600362A1 (enrdf_load_stackoverflow)
FR (1) FR2298839A1 (enrdf_load_stackoverflow)
GB (1) GB1511461A (enrdf_load_stackoverflow)
IT (1) IT1053395B (enrdf_load_stackoverflow)
NL (1) NL7600175A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818942C2 (de) 1978-04-28 1986-03-27 Zellweger Uster Ag, Uster Verfahren zur Raumüberwachung und Vorrichtung zur Durchführung des Verfahrens
EP0010870A1 (en) * 1978-10-04 1980-05-14 Glynwed Group Services Limited Electronic lock and key, and an alarm system incorporating same
DE3428773A1 (de) * 1984-08-03 1986-02-13 Siemens AG, 1000 Berlin und 8000 München Ultraschallnaeherungsinitiator
GB2179481B (en) * 1985-08-20 1989-08-02 Rentokil Ltd Pest detection apparatus and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680074A (en) * 1969-11-03 1972-07-25 Zeev Lieser Intrusion systems employing digital processing circuitry
US3781859A (en) * 1972-04-19 1973-12-25 Seabroad Electric Controlled wave pattern ultrasonic burglar alarm

Also Published As

Publication number Publication date
IT1053395B (it) 1981-08-31
JPS5197397A (enrdf_load_stackoverflow) 1976-08-26
AU1205976A (en) 1977-09-22
FR2298839B1 (enrdf_load_stackoverflow) 1980-05-30
CA1050652A (en) 1979-03-13
NL7600175A (nl) 1976-07-23
DE2600362A1 (de) 1976-07-22
AU502566B2 (en) 1979-08-02
FR2298839A1 (fr) 1976-08-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee