GB2119981B - Alarm systems - Google Patents

Alarm systems

Info

Publication number
GB2119981B
GB2119981B GB08200358A GB8200358A GB2119981B GB 2119981 B GB2119981 B GB 2119981B GB 08200358 A GB08200358 A GB 08200358A GB 8200358 A GB8200358 A GB 8200358A GB 2119981 B GB2119981 B GB 2119981B
Authority
GB
United Kingdom
Prior art keywords
alarm systems
alarm
systems
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
GB08200358A
Other versions
GB2119981A (en
Inventor
John Malcolm Morrison
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08200358A priority Critical patent/GB2119981B/en
Publication of GB2119981A publication Critical patent/GB2119981A/en
Application granted granted Critical
Publication of GB2119981B publication Critical patent/GB2119981B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
GB08200358A 1982-01-07 1982-01-07 Alarm systems Expired GB2119981B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08200358A GB2119981B (en) 1982-01-07 1982-01-07 Alarm systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08200358A GB2119981B (en) 1982-01-07 1982-01-07 Alarm systems

Publications (2)

Publication Number Publication Date
GB2119981A GB2119981A (en) 1983-11-23
GB2119981B true GB2119981B (en) 1985-08-07

Family

ID=10527513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08200358A Expired GB2119981B (en) 1982-01-07 1982-01-07 Alarm systems

Country Status (1)

Country Link
GB (1) GB2119981B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8512655D0 (en) * 1985-05-20 1985-06-26 London Technology Network Security systems
SE468870B (en) * 1990-01-23 1993-03-29 Samon Ab SETTING AND DEVICE FOR MONITORING OF EXTERNAL DEVICES, SUCH AS TEMPERATURE, MOISTURE AND GAS PREVENTION
FR2685600A1 (en) * 1991-12-20 1993-06-25 Robart Yves System for surveillance of a plurality of electrical cabinets, and especially of telephony sub-distribution cabinets
GB2348553A (en) * 1999-03-23 2000-10-04 John Edward Cunningham Network monitoring system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789388A (en) * 1971-11-22 1973-01-15 Telecomunicazioni Soc It TELE-SURVEILLANCE SYSTEM USING THE TELEPHONE NETWORK FOR THE TRANSMISSION OF INFORMATION
GB1428652A (en) * 1972-02-11 1976-03-17 Plessey Co Ltd Alarm systems
FR2283493A1 (en) * 1974-08-30 1976-03-26 Thomson Csf RADIO MONITORING DEVICE
GB2067321B (en) * 1980-01-08 1983-07-06 Raveningham Elect Res Monitoring apparatus

Also Published As

Publication number Publication date
GB2119981A (en) 1983-11-23

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Legal Events

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