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GB201208230D0 - Security system - Google Patents

Security system

Info

Publication number
GB201208230D0
GB201208230D0 GBGB1208230.1A GB201208230A GB201208230D0 GB 201208230 D0 GB201208230 D0 GB 201208230D0 GB 201208230 A GB201208230 A GB 201208230A GB 201208230 D0 GB201208230 D0 GB 201208230D0
Authority
GB
United Kingdom
Prior art keywords
linear sensor
controller
break
indication
detect
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.)
Granted
Application number
GBGB1208230.1A
Other versions
GB2501914B (en
GB2501914A (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.)
Thermocable Flexible Elements Ltd
Original Assignee
Thermocable Flexible Elements 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 Thermocable Flexible Elements Ltd filed Critical Thermocable Flexible Elements Ltd
Priority to GB1208230.1A priority Critical patent/GB2501914B/en
Publication of GB201208230D0 publication Critical patent/GB201208230D0/en
Publication of GB2501914A publication Critical patent/GB2501914A/en
Application granted granted Critical
Publication of GB2501914B publication Critical patent/GB2501914B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Alarm Systems (AREA)

Abstract

A security system is provided comprising at least a linear sensor 106,108 and a controller 104 attached to the linear sensor. The controller is configured to detect a break in the linear sensor; determine the geographical position of the controller; and transmit a message including an indication of the geographical position of the controller if a break in the linear sensor is detected. The controller may further determine the length along the linear sensor at which the break has occurred. The controller may utilise time domain reflectometry to determine the length along the linear sensor. The transmitted message may further include an indication of the position of the break in the linear sensor. The linear sensor may comprise a twisted pair of wires (see figure 2), each wire having a polyethylene foam coating, and a resistance connected between ends of the pair of wires distal to the controller. A value of an electrical property of the linear sensor may be read in order to detect a break in the linear sensor. The electrical property may indicate an open circuit condition of the linear sensor.
GB1208230.1A 2012-05-10 2012-05-10 Security system Active GB2501914B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1208230.1A GB2501914B (en) 2012-05-10 2012-05-10 Security system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1208230.1A GB2501914B (en) 2012-05-10 2012-05-10 Security system

Publications (3)

Publication Number Publication Date
GB201208230D0 true GB201208230D0 (en) 2012-06-20
GB2501914A GB2501914A (en) 2013-11-13
GB2501914B GB2501914B (en) 2015-01-07

Family

ID=46396838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1208230.1A Active GB2501914B (en) 2012-05-10 2012-05-10 Security system

Country Status (1)

Country Link
GB (1) GB2501914B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3581460A1 (en) * 2018-05-09 2019-12-18 Progress Rail Services Corporation Systems and methods for monitoring a railroad wayside electric fence

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836899A (en) * 1973-09-04 1974-09-17 Gte Sylvania Inc Intrusion detection and locating system
JP2004069680A (en) * 2002-06-10 2004-03-04 Hiroshi Kurita System for detecting abnormality in structure
JP4760521B2 (en) * 2006-05-12 2011-08-31 日立電線株式会社 Electrical cable disconnection detection device and disconnection detection method
CN201242795Y (en) * 2008-07-05 2009-05-20 郑龙杰 Anti-theft equipment for street lamp cable
WO2010116319A2 (en) * 2009-04-06 2010-10-14 Leonardus Gerrardus Philippus Verloop A method and apparatus for monitoring an elongate conductor
CN102098100A (en) * 2010-12-29 2011-06-15 武汉光迅科技股份有限公司 Method for automatically monitoring and maintaining optical cable

Also Published As

Publication number Publication date
GB2501914B (en) 2015-01-07
GB2501914A (en) 2013-11-13

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