GB9014946D0 - Infra red intruder detector - Google Patents

Infra red intruder detector

Info

Publication number
GB9014946D0
GB9014946D0 GB909014946A GB9014946A GB9014946D0 GB 9014946 D0 GB9014946 D0 GB 9014946D0 GB 909014946 A GB909014946 A GB 909014946A GB 9014946 A GB9014946 A GB 9014946A GB 9014946 D0 GB9014946 D0 GB 9014946D0
Authority
GB
United Kingdom
Prior art keywords
infra red
intruder detector
red intruder
detector
infra
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.)
Withdrawn
Application number
GB909014946A
Other versions
GB2235316A (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.)
ML Aviation Ltd
Original Assignee
ML Aviation 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 ML Aviation Ltd filed Critical ML Aviation Ltd
Publication of GB9014946D0 publication Critical patent/GB9014946D0/en
Publication of GB2235316A publication Critical patent/GB2235316A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • 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
    • G08B13/193—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 using focusing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
GB9014946A 1989-07-11 1990-07-06 Infra red intruder detector Withdrawn GB2235316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898915818A GB8915818D0 (en) 1989-07-11 1989-07-11 Infra red intruder detector

Publications (2)

Publication Number Publication Date
GB9014946D0 true GB9014946D0 (en) 1990-08-29
GB2235316A GB2235316A (en) 1991-02-27

Family

ID=10659838

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898915818A Pending GB8915818D0 (en) 1989-07-11 1989-07-11 Infra red intruder detector
GB9014946A Withdrawn GB2235316A (en) 1989-07-11 1990-07-06 Infra red intruder detector

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898915818A Pending GB8915818D0 (en) 1989-07-11 1989-07-11 Infra red intruder detector

Country Status (1)

Country Link
GB (2) GB8915818D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450060A (en) * 1993-02-05 1995-09-12 Parkhurst; Neil E. Motion detection
US7027416B1 (en) * 1997-10-01 2006-04-11 Honeywell, Inc. Multi tier wireless communication system
US8929228B2 (en) 2004-07-01 2015-01-06 Honeywell International Inc. Latency controlled redundant routing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357602A (en) * 1979-08-06 1982-11-02 Lemelson Jerome H Fire detection and warning system
SE432492B (en) * 1983-02-18 1984-04-02 Lars Stenmark INFRARED SENSOR DETECTOR CONSISTING OF A PELTIER ELEMENT
GB2156120A (en) * 1984-02-23 1985-10-02 Alarmcall Security Systems Lim Alarm system
GB8609947D0 (en) * 1986-04-23 1986-05-29 Newton C Security systems
US4764757A (en) * 1987-03-12 1988-08-16 Demarco Frank G Security detection and location system with independent local alarm and communications circuits

Also Published As

Publication number Publication date
GB8915818D0 (en) 1989-11-08
GB2235316A (en) 1991-02-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)