GB2141228B - Infra-red intrusion detector - Google Patents

Infra-red intrusion detector

Info

Publication number
GB2141228B
GB2141228B GB08414153A GB8414153A GB2141228B GB 2141228 B GB2141228 B GB 2141228B GB 08414153 A GB08414153 A GB 08414153A GB 8414153 A GB8414153 A GB 8414153A GB 2141228 B GB2141228 B GB 2141228B
Authority
GB
United Kingdom
Prior art keywords
infra
intrusion detector
red intrusion
red
detector
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
GB08414153A
Other versions
GB8414153D0 (en
GB2141228A (en
Inventor
Roy Alan Schofield
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.)
Shorrock Security Systems Ltd
Original Assignee
Shorrock Security Systems 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 Shorrock Security Systems Ltd filed Critical Shorrock Security Systems Ltd
Priority to GB08414153A priority Critical patent/GB2141228B/en
Publication of GB8414153D0 publication Critical patent/GB8414153D0/en
Publication of GB2141228A publication Critical patent/GB2141228A/en
Application granted granted Critical
Publication of GB2141228B publication Critical patent/GB2141228B/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
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
GB08414153A 1983-06-09 1984-06-04 Infra-red intrusion detector Expired GB2141228B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08414153A GB2141228B (en) 1983-06-09 1984-06-04 Infra-red intrusion detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8315849 1983-06-09
GB08414153A GB2141228B (en) 1983-06-09 1984-06-04 Infra-red intrusion detector

Publications (3)

Publication Number Publication Date
GB8414153D0 GB8414153D0 (en) 1984-07-11
GB2141228A GB2141228A (en) 1984-12-12
GB2141228B true GB2141228B (en) 1987-01-07

Family

ID=26286339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08414153A Expired GB2141228B (en) 1983-06-09 1984-06-04 Infra-red intrusion detector

Country Status (1)

Country Link
GB (1) GB2141228B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9188487B2 (en) 2011-11-16 2015-11-17 Tyco Fire & Security Gmbh Motion detection systems and methodologies

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152721A (en) * 1984-01-14 1985-08-07 John Michael Loftus Intruder alarm apparatus
FR2574200B1 (en) * 1984-11-30 1987-01-23 Labo Electronique Physique DEVICE FOR DETECTING AN INTRUDER PROVIDED WITH AN ANTI-MASKING DEVICE
ATE47238T1 (en) * 1985-01-08 1989-10-15 Cerberus Ag INFRARED INTRUSION DETECTOR.
GB2169731B (en) * 1985-01-14 1988-12-14 Jnr Robert Mcnair Alarm sound generator with a foam injection detector
DE3518262A1 (en) * 1985-05-21 1986-11-27 Cerberus AG, Männedorf, Zürich Infrared intrusion detector
GB2175686A (en) * 1985-05-28 1986-12-03 Graviner Ltd Fire or explosion detection arrangement
EP0219711A1 (en) * 1985-10-08 1987-04-29 Heimann GmbH Infrared detector
EP0289621A4 (en) * 1986-10-31 1990-07-03 Takenaka Eng Co Ltd Passive infrared burglar sensor equipped with visual field interruption monitor mechanism.
DE3709142A1 (en) * 1987-03-12 1988-09-22 Precitronic Arrangement for transmitting laser light
JP2558296B2 (en) * 1987-10-30 1996-11-27 株式会社日立製作所 Optical sensor having self-diagnosis function and device using the same
GB8829892D0 (en) * 1988-12-22 1989-09-13 Racal Guardall Scotland Radiation detection arrangements and methods
IT1241278B (en) * 1990-10-19 1993-12-29 Elkron Spa ANTI-BLINDING DEVICE FOR COMPONENTS OF SECURITY SYSTEMS.
IT1245405B (en) * 1991-02-11 1994-09-20 Bitron Video ANTI-INTRUSION DEVICE
GB2257822A (en) * 1991-06-27 1993-01-20 Prestige Aire 2000 Security system for test or monitoring equipment
NL9200283A (en) * 1992-02-17 1993-09-16 Aritech Bv MONITORING SYSTEM.
NL9301041A (en) * 1993-06-16 1995-01-16 Aritech Bv Monitoring system
GB2286042B (en) * 1994-01-27 1998-07-29 Security Enclosures Ltd Wide-angle infra-red detection apparatus
IL110800A0 (en) * 1994-08-28 1995-07-31 Visonic Ltd Improved intrusion detector with obscuring detection apparatus
NL1003500C2 (en) * 1996-07-04 1998-01-07 Aritech Bv Monitoring system with light-guiding means.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1439325A (en) * 1972-05-06 1976-06-16 Kgm Electronics Ltd Alarm detectors
GB1603306A (en) * 1978-04-27 1981-11-25 First Ba Security Ltd Intruder alarms
IN158131B (en) * 1981-06-02 1986-09-13 Santa Barbara Res Center
US4405234A (en) * 1981-08-03 1983-09-20 Detector Electronics Corp. Radiation detection apparatus having refractive light checking feature
EP0078443A3 (en) * 1981-10-30 1984-11-28 Armtec Industries, Inc. Fire detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9188487B2 (en) 2011-11-16 2015-11-17 Tyco Fire & Security Gmbh Motion detection systems and methodologies

Also Published As

Publication number Publication date
GB8414153D0 (en) 1984-07-11
GB2141228A (en) 1984-12-12

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Legal Events

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