Monday 22 April 2013

CCTV networks



A common estimate used is that made in 2002 where it was estimated[10] that the United Kingdom was monitored by over 4.2 million CCTV cameras, some with a facial recognition capacity, with practically all cities and towns under 24-hour surveillance. However, many have strongly condemned the assumptions behind that estimate, noting that it involved the extrapolation of observation from one 1.5 km long street in PutneyLondon to the entire population of the UK.[11] In addition, the vast majority of cameras are not operated by the UK Government, but by private companies, especially to monitor the interiors of shops and businesses. According to 2009 Freedom of Information Act requests, the total number of local authority operated CCTV cameras was around 60,000 over the entirety of the UK.[12]
Currently, in the City of Westminstermicrophones are being fitted next to CCTV cameras. Westminster council claims that they are simply part of an initiative against urban noise, and will not "be used to snoop", but comments from a council spokesman appear to imply that they have been deliberately designed to capture an audio stream alongside the video stream, rather than simply reporting noise levels.[13]
As of Feb 2010, many larger cities in the UK now have CCTV in which if an operator spots anything illegal or troubling, they are able to speak through the cameras via loudspeaker into the street, and some also have microphones to allow them to hear what the public are saying.

Saturday 20 April 2013

Closed Circuit Television


Closed-circuit television (CCTV) 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, or mesh wireless links. Though almost all video cameras fit this definition, the term is most often applied to those used forsurveillance in areas that may need monitoring such as banks, casinos, airports, military installations, and convenience stores. Videotelephony is seldom called "CCTV" but the use of video in distance education, where it is an important tool, is often so called.[1][2]
In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, for example when the environment is not suitable for humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, utilizing 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-based CCTV cameras, some equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation. Surveillance of the public using CCTV is particularly common in many areas around the world including the United Kingdom, where there are reportedly more cameras per person than in any other country in the world.[3] There and elsewhere, its increasing use has triggered a debate about security versus privacy.

Tuesday 16 April 2013

New Blogger

Hi Everyone,

Just a quick post to say hello, we are JT Security Suppliers, we supply and install many types of security systems mainly alarm and cctv systems to domestic and commercial premises in the north east of england.
We are currently trying to increase traffic to our newly updated sales website selling lots of cctv and alarm products.
We established our company in 2010 and have grown enough to compete along side many high quality installers due to the extra lengths we go to making sure all our customers are happy and given a fair price for the jobs they request.
Once we get the hang of blogging we will hopefully bring you lots of interesting information about security and increase awareness of the major need for security systems nowadays due to the shocking increase in burglaries year upon year in different areas across Teesside.

Thanks for reading, speak again soon,
JT Security Suppliers
www.cctvsuppliersuk.co.uk