GB2129123B - Intruder detector and method - Google Patents

Intruder detector and method

Info

Publication number
GB2129123B
GB2129123B GB08229152A GB8229152A GB2129123B GB 2129123 B GB2129123 B GB 2129123B GB 08229152 A GB08229152 A GB 08229152A GB 8229152 A GB8229152 A GB 8229152A GB 2129123 B GB2129123 B GB 2129123B
Authority
GB
United Kingdom
Prior art keywords
intruder detector
intruder
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
GB08229152A
Other versions
GB2129123A (en
Inventor
Tristan Penet
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.)
Cegelec SA
Original Assignee
Cegelec 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 Cegelec SA filed Critical Cegelec SA
Priority to GB08229152A priority Critical patent/GB2129123B/en
Publication of GB2129123A publication Critical patent/GB2129123A/en
Application granted granted Critical
Publication of GB2129123B publication Critical patent/GB2129123B/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
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB08229152A 1982-10-12 1982-10-12 Intruder detector and method Expired GB2129123B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08229152A GB2129123B (en) 1982-10-12 1982-10-12 Intruder detector and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08229152A GB2129123B (en) 1982-10-12 1982-10-12 Intruder detector and method

Publications (2)

Publication Number Publication Date
GB2129123A GB2129123A (en) 1984-05-10
GB2129123B true GB2129123B (en) 1986-01-22

Family

ID=10533555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08229152A Expired GB2129123B (en) 1982-10-12 1982-10-12 Intruder detector and method

Country Status (1)

Country Link
GB (1) GB2129123B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8529585D0 (en) * 1985-11-30 1986-01-08 Casswell P H Active infra red detector
US4855590A (en) * 1987-06-25 1989-08-08 Amp Incorporated Infrared touch input device having ambient compensation
CN102087773B (en) * 2009-12-04 2012-08-01 北京卫星环境工程研究所 Electronic early warning system on spacecraft technology protector
CN109389792A (en) * 2018-11-28 2019-02-26 赵军 A kind of alarm input/output module

Also Published As

Publication number Publication date
GB2129123A (en) 1984-05-10

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Legal Events

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