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Closed-circuit television (CCTV), also known as video surveillance,[1][2] is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point (P2P), point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (Videotelephony is seldom called "CCTV"[3][4]). Surveillance of the public using CCTV is common in many areas around the world. Video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public.[5][6][7] In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, especially if the environments observed are dangerous or inaccessible to humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, using digital video recorders (DVRs), provides recording for possibly many years, with a variety of quality and performance options and extra features (such as motion detection and email alerts). More recently, decentralized IP cameras, perhaps equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation. By one estimate, there will be approximately 1 billion surveillance cameras in use worldwide by 2021.[8][needs update] About 65% of these cameras are installed in Asia. The growth of CCTV has been slowing in recent years.[9][unreliable source?] The deployment of this technology has facilitated significant growth in state surveillance, a substantial rise in the methods of advanced social monitoring and control, and a host of crime prevention measures throughout the world.[10]A security alarm is a system designed to detect intrusions, such as unauthorized entry, into a building or other areas, such as a home or school. Security alarms protect against burglary (theft) or property damage, as well as against intruders. Examples include personal systems, neighborhood security alerts, car alarms, and prison alarms. Some alarm systems serve a single purpose of burglary protection; combination systems provide fire and intrusion protection. Intrusion-alarm systems are combined with closed-circuit television surveillance (CCTV) systems to record intruders' activities and interface to access control systems for electrically locked doors. There are many types of security systems. Homeowners typically have small, self-contained noisemakers. These devices can also be complicated, multirole systems with computer monitoring and control. It may even include a two-way voice which allows communication between the panel and monitoring station.
South West Englandis one of nine officialregions of England. It consists of the counties ofBristol,Cornwall(including theIsles of Scilly),Dorset,Devon,Gloucestershire,SomersetandWiltshire. Large cities and towns in the region includeBristol,Bournemouth,Cheltenham,Exeter,Gloucester,PlymouthandSwindon. It is geographically the largest of the nine regions of England covering 9,200 square miles (23,800 km2),[1]but the third least-populous, with approximately five million residents.
The region includes theWest Countryand much of the ancient kingdom ofWessex. It includes two entirenational parks,DartmoorandExmoor(a small part of theNew Forestis also within the region); and fourWorld Heritage Sites:Stonehenge, theCornwall and West Devon Mining Landscape, theJurassic Coastand theCity of Bath. The northern part of Gloucestershire, nearChipping Campden, is as close to the Scottish border as it is to the tip of Cornwall.[2]The region has by far the longest coastline of any English region.
The region is at thefirst levelofNUTSforEurostatpurposes. Key data and facts about the region are produced by theSouth West Observatory. Following the abolition of theSouth West Regional AssemblyandGovernment Office, local government coordination across the region is now undertaken bySouth West Councils.
The region is known for its richfolklore, including the legend ofKing ArthurandGlastonbury Tor, as well as its traditions and customs. Cornwall has its own language,Cornish, and some regard it as aCeltic nation. The South West is known forCheddar cheese, which originated in theSomersetvillage ofCheddar; Devoncream teas,crabs,Cornish pasties, andcider. It is home to theEden Project,Aardman Animations, theGlastonbury Festival, theBristol International Balloon Fiesta,trip hopmusic and Cornwall'ssurfingbeaches. The region has also been home to some of Britain's most renowned writers, includingDaphne du Maurier,Agatha ChristieandEnid Blyton, all of whom set many of their works here, and the South West is also the location ofThomas Hardy's Wessex, the setting for many of his best-known novels.
