Browse Definitions :
Definition

CCTV (closed circuit television)

Contributor(s): Lasse Pedersen

CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes.

CCTV relies on strategic placement of cameras, and observation of the camera's input on monitors somewhere. Because the cameras communicate with monitors and/or video recorders across private coaxial cable runs or wireless communication links, they gain the designation "closed-circuit" to indicate that access to their content is limited by design only to those able to see it.

Older CCTV systems used small, low-resolution black and white monitors with no interactive capabilities. Modern CCTV displays can be color, high-resolution displays and can include the ability to zoom in on an image or track something (or someone) among their features. Talk CCTV allows an overseer to speak to people within range of the camera's associated speakers.

CCTV is commonly used for a variety of purposes, including:

  • Maintaining perimeter security in medium- to high-secure areas and installations.
  • Observing behavior of incarcerated inmates and potentially dangerous patients in medical facilities.
  • Traffic monitoring.
  • Overseeing locations that would be hazardous to a human, for example, highly radioactive or toxic industrial environments.
  • Building and grounds security.
  • Obtaining a visual record of activities in situations where it is necessary to maintain proper security or access controls (for example, in a diamond cutting or sorting operation; in banks, casinos, or airports).

CCTV is finding increasing use in law-enforcement, for everything from traffic observation (and automated ticketing) to observation of high-crime areas or neighborhoods. Such use of CCTV technology has fueled privacy concerns in many parts of the world, particularly in those areas in the UK and Europe where it has become a routine part of police procedure.

This was last updated in April 2012

Continue Reading About CCTV (closed circuit television)

Join the conversation

4 comments

Send me notifications when other members comment.

Please create a username to comment.

POS system is really an excellent way to increase sales and boost productivity. I have installed one in my retail store and has seen great boost on my sales and inventory tracking has become a lot simple.
Cancel
what are the best type of cctv cameras
Cancel
Which Systems are best to use for POE as I need a reliable system that's IP Based but does not need local power for the cameras. Also, the cable runs are around 70 - 100m. Can this be done? 

I have looked at Hikvision and Qviz but none of them will do that kind of distance POE.


Cancel
CCTVs are one of the popular tools to safeguard your family and premises. It just needs one-time investment and after that, it will work according to your convenience. One should Install it inside the premises. Yes, it cannot stop the crime but at least it can record all the activities for further investigation.


Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

SearchSecurity

  • challenge-response authentication

    In information security, challenge-response authentication is a type of authentication protocol where one entity presents a ...

  • Secure Shell (SSH)

    SSH, also known as Secure Shell or Secure Socket Shell, is a network protocol that gives users, particularly system ...

  • honeypot (computing)

    A honeypot is a network-attached system set up as a decoy to lure cyberattackers and to detect, deflect or study hacking attempts...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • exbibyte (EiB)

    An exbibyte (EiB) is a unit used to measure data capacity.

  • zebibyte (ZiB)

    A zebibyte (ZiB) is a unit used to measure computing and storage capacity.

  • tiered storage

    Tiered storage is a way to assign different categories of data to various types of storage media with the objective of reducing ...

Close