GB2082358B - Security systems - Google Patents

Security systems

Info

Publication number
GB2082358B
GB2082358B GB8124800A GB8124800A GB2082358B GB 2082358 B GB2082358 B GB 2082358B GB 8124800 A GB8124800 A GB 8124800A GB 8124800 A GB8124800 A GB 8124800A GB 2082358 B GB2082358 B GB 2082358B
Authority
GB
United Kingdom
Prior art keywords
security systems
security
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
GB8124800A
Other versions
GB2082358A (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.)
DYNALARM Ltd
Original Assignee
DYNALARM 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 DYNALARM Ltd filed Critical DYNALARM Ltd
Priority to GB8124800A priority Critical patent/GB2082358B/en
Publication of GB2082358A publication Critical patent/GB2082358A/en
Application granted granted Critical
Publication of GB2082358B publication Critical patent/GB2082358B/en
Expired 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
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
GB8124800A 1980-08-14 1981-08-13 Security systems Expired GB2082358B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8124800A GB2082358B (en) 1980-08-14 1981-08-13 Security systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8026575 1980-08-14
GB8124800A GB2082358B (en) 1980-08-14 1981-08-13 Security systems

Publications (2)

Publication Number Publication Date
GB2082358A GB2082358A (en) 1982-03-03
GB2082358B true GB2082358B (en) 1984-09-05

Family

ID=26276563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8124800A Expired GB2082358B (en) 1980-08-14 1981-08-13 Security systems

Country Status (1)

Country Link
GB (1) GB2082358B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK346982A (en) * 1981-02-06 1983-02-07 Inst For Ind Res & Standards METHOD AND APPARATUS FOR IDENTIFYING THE LOCATION OF A STATE CHANGE IN A PART OF AN ELECTRIC CIRCUIT
JPS5977594A (en) * 1982-10-27 1984-05-04 ニツタン株式会社 Fire alarm system
IE960081A1 (en) * 1995-01-27 1996-08-07 Cetsa Ltd An electrical circuit
US7999668B2 (en) 2008-11-17 2011-08-16 GM Global Technology Operations LLC Series interlock system with integrated ability to identify breached locations
DE102014019161A1 (en) * 2014-12-19 2016-06-23 Audi Ag Method for identifying an operating device of a vehicle and operating device for a vehicle

Also Published As

Publication number Publication date
GB2082358A (en) 1982-03-03

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Legal Events

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