GB201208230D0 - Security system - Google Patents
Security systemInfo
- 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
Links
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 238000002310 reflectometry Methods 0.000 abstract 1
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
-
- 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
- G08B13/12—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
-
- 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)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (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.
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)
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)
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 |
-
2012
- 2012-05-10 GB GB1208230.1A patent/GB2501914B/en active Active
Also Published As
Publication number | Publication date |
---|---|
GB2501914B (en) | 2015-01-07 |
GB2501914A (en) | 2013-11-13 |
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