GB2198865B - Alarm system - Google Patents

Alarm system

Info

Publication number
GB2198865B
GB2198865B GB8720123A GB8720123A GB2198865B GB 2198865 B GB2198865 B GB 2198865B GB 8720123 A GB8720123 A GB 8720123A GB 8720123 A GB8720123 A GB 8720123A GB 2198865 B GB2198865 B GB 2198865B
Authority
GB
United Kingdom
Prior art keywords
alarm system
alarm
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 - Fee Related
Application number
GB8720123A
Other versions
GB2198865A (en
GB8720123D0 (en
Inventor
Barry Alfred Morgan
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.)
TRANSALARM Ltd
Original Assignee
TRANSALARM 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 TRANSALARM Ltd filed Critical TRANSALARM Ltd
Publication of GB8720123D0 publication Critical patent/GB8720123D0/en
Publication of GB2198865A publication Critical patent/GB2198865A/en
Application granted granted Critical
Publication of GB2198865B publication Critical patent/GB2198865B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/023—Power management, e.g. system sleep and wake up provisions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0241—Data exchange details, e.g. data protocol
    • G08B21/0247—System arrangements wherein the alarm criteria uses signal strength

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
GB8720123A 1986-12-10 1987-08-26 Alarm system Expired - Fee Related GB2198865B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868629576A GB8629576D0 (en) 1986-12-10 1986-12-10 Alarm system

Publications (3)

Publication Number Publication Date
GB8720123D0 GB8720123D0 (en) 1987-09-30
GB2198865A GB2198865A (en) 1988-06-22
GB2198865B true GB2198865B (en) 1990-08-15

Family

ID=10608809

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868629576A Pending GB8629576D0 (en) 1986-12-10 1986-12-10 Alarm system
GB8720123A Expired - Fee Related GB2198865B (en) 1986-12-10 1987-08-26 Alarm system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868629576A Pending GB8629576D0 (en) 1986-12-10 1986-12-10 Alarm system

Country Status (1)

Country Link
GB (2) GB8629576D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8810403D0 (en) * 1988-05-03 1988-06-08 Shorrock Security Systems Ltd Radio tag alarm system
GB2217084A (en) * 1989-03-07 1989-10-18 Mark Sillett Personal security device
GB2236000A (en) * 1989-09-01 1991-03-20 Ronald George Connor Theft or loss alarm system
FR2674351A1 (en) * 1991-03-22 1992-09-25 Schmidt Patrick Separation detector

Also Published As

Publication number Publication date
GB8629576D0 (en) 1987-01-21
GB2198865A (en) 1988-06-22
GB8720123D0 (en) 1987-09-30

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Legal Events

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